338-375 Ruger build

Woodycreek":22w0gah0 said:
Wish you guys could have been in on the brainstorming that Scotty and me had this morning! That was the most fun I have had talking about rifles in a long time.
Click to expand...
You and Scotty "brainstorming", that would be called light sprinkles or spotty showers! :grin: This sounds great Brian and it should be a really nice rifle. Good luck with your project. If and when it gets started we need pictures as it goes along through the build process. Please! :shock: :grin:
 
Same here Jake, it would be the Model 70 Stainless Classic getting the treatment! I wanna shoot the 250's out of mine.

DSC_2548.jpg
 
jmad_81":3kzygs9f said:
Scotty we are sharing a brain on this one. I would do a new tube for sure. I like the idea of a 225AB doing a cool 3000! Might have to rent your reamer when i get my other projects caught up.
Click to expand...

Yeah, this seems like a good plan really. Ballistically, it is right where I want to be. A new barrel would be very nice as well. I wouldn't mind getting rid of the BOSS either to be honest. I am not sure about what to do about barrels right now, but that is where my mind is wandering.
 
Woodycreek":1m9v4v2p said:
Scotty said Hornday match grade dies are $190. Wonder if Forster or Redding would build them? Maybe use 375 Ruger dies and bushings? I'm using that Ruger Hawkeye sporter!
Click to expand...

Bummer. I've taken a pretty serious disliking to Hornady dies... at least the New Dimension dies. Maybe the Match Grade will piss me off less.

Forsters would be the ultimate, Reddings just a small step down. I'd rather have RCBS dies than Hornady.
 
Probably like a .340 Bee with a Lapua's ballistics using 10-15 grains less powder. It kinda sounds like it will be in that realm.
 
nice, always good to see someone building something you cant buy off the shelf. scotty if you do find someone to chamber your old barrel do it and form all of your brass in it. you should be able to go from the 375 to the 338 in one shot in the full length die "case lube will be important here" you wont need a form die because your not changing the shoulder or the neck just reducing the neck diameter, you may have to turn the necks depending on the reamer and what your neck mics out at. you should get a print with the reamer if you dont ask for one. dave tooley from tooley custom rifles has built these and sells reamers and dies for it i would call him and for any questions regarding the forming proccess, what reamer to use and load data. tooley custom rifles 1-704-864-7525
 
Thanks Jeff. That is actually alot of help buddy. I am going to be relying on you all as I move forward for this. I like the 375 ruger case. Seems like about the right capacity for the larger bullet without getting into the big RUM style cases. I know it isn't much, but I do like the 2.5" case as well..
 
Just wanted to show some data with the 338-375 Ruger for comparison to the other 338's out there

338/375 Ruger 250 AB's- 26" barrel - 65000PSI

Cartridge : .338-375 Ruger
Bullet : .338, 250, Nosler AccuBond 57287
Useable Case Capaci: 81.531 grain H2O = 5.294 cm³
Cartridge O.A.L. L6: 3.340 inch = 84.84 mm
Barrel Length : 26.0 inch = 660.4 mm

Predicted Data for Indicated Charges of the Following Powders.
Matching Maximum Pressure: 65000 psi, or 448 MPa
or a maximum loading ratio or filling of 107 %
These calculations refer to your specified settings in QuickLOAD 'Cartridge Dimensions' window.
C A U T I O N : any load listed can result in a powder charge that falls below minimum suggested
loads or exceeds maximum suggested loads as presented in current handloading manuals. Understand
that all of the listed powders can be unsuitable for the given combination of cartridge, bullet
and gun. Actual load order can vary, depending upon lot-to-lot powder and component variations.
USE ONLY FOR COMPARISON !

150 loads produced a Loading Ratio below user-defined minimum of 90%. These powders have been skipped.
Powder type Filling/Loading Ratio Charge Charge Vel. Prop.Burnt P max P muzz B_Time
% Grains Gramm fps % psi psi ms
--------------------------------- -----------------------------------------------------------------
Norma MRP 103.7 81.3 5.27 2909 100.0 65000 10373 1.258 !DANGEROUS LOAD-DO NOT USE!
Vihtavuori N560 105.5 81.0 5.25 2908 99.4 65000 10775 1.254 !DANGEROUS LOAD-DO NOT USE!
Accurate MAGPRO 105.7 84.5 5.47 2901 98.5 65000 10878 1.260 !DANGEROUS LOAD-DO NOT USE!
IMR 7828 SSC 104.1 80.3 5.21 2891 99.6 65000 10374 1.245 !DANGEROUS LOAD-DO NOT USE!
Ramshot Magnum 107.0 86.1 5.58 2883 99.7 63162 10502 1.260 !DANGEROUS LOAD-DO NOT USE!
Alliant Reloder-22 105.8 80.3 5.21 2881 100.0 65000 10290 1.261 !DANGEROUS LOAD-DO NOT USE!
Raufoss RA15 105.8 80.3 5.21 2881 100.0 65000 10290 1.261 !DANGEROUS LOAD-DO NOT USE!
Bofors RP5/NP ~approximation 105.8 80.3 5.21 2881 100.0 65000 10290 1.261 !DANGEROUS LOAD-DO NOT USE!
ADI AR 2213 105.0 79.8 5.17 2877 99.5 65000 10314 1.245 !DANGEROUS LOAD-DO NOT USE!
SNPE Vectan SP 12 107.0 85.8 5.56 2875 99.7 62575 10462 1.265 ! Near Maximum !
PB Clermont PCL 517 107.0 85.8 5.56 2870 99.6 62197 10478 1.268 ! Near Maximum !
Rottweil R905 106.9 79.8 5.17 2848 99.3 65000 10084 1.263 !DANGEROUS LOAD-DO NOT USE!
Winchester WXR 107.0 79.5 5.15 2839 99.8 61726 10241 1.290 ! Near Maximum !
ADI AR 2209 101.9 76.2 4.94 2837 99.9 65000 9754 1.254 !DANGEROUS LOAD-DO NOT USE!
Alliant Reloder-19 102.5 77.0 4.99 2836 99.9 65000 9817 1.262 !DANGEROUS LOAD-DO NOT USE!
Bofors RP14 ~approximation 103.2 77.6 5.03 2829 99.9 65000 9748 1.263 !DANGEROUS LOAD-DO NOT USE!
Ramshot Hunter 98.0 76.0 4.93 2825 100.0 65000 9401 1.269 !DANGEROUS LOAD-DO NOT USE!
Winchester 760 92.5 73.6 4.77 2823 100.0 65000 9426 1.271 !DANGEROUS LOAD-DO NOT USE!
Hodgdon H414 92.5 73.6 4.77 2823 100.0 65000 9426 1.271 !DANGEROUS LOAD-DO NOT USE!
ADI AP 2214 107.0 83.5 5.41 2814 99.3 60796 10054 1.280 ! Near Maximum !
Hodgdon H4831 SC 103.6 78.7 5.10 2813 99.1 65000 9747 1.260 !DANGEROUS LOAD-DO NOT USE!
Norma 204 97.2 75.4 4.89 2811 99.8 65000 9566 1.264 !DANGEROUS LOAD-DO NOT USE!
Raufoss RA4 100.4 75.4 4.89 2811 99.8 65000 9566 1.264 !DANGEROUS LOAD-DO NOT USE!
Bofors RP4 ~approximation 100.4 75.4 4.89 2811 99.8 65000 9566 1.264 !DANGEROUS LOAD-DO NOT USE!
IMR 7828 107.0 78.1 5.06 2810 99.0 58901 10216 1.300 ! Near Maximum !
Alliant Reloder-17 90.3 71.2 4.61 2804 100.0 65000 8863 1.260 !DANGEROUS LOAD-DO NOT USE!
Vihtavuori N550 94.8 72.8 4.71 2800 100.0 65000 9121 1.281 !DANGEROUS LOAD-DO NOT USE!
Somchem S365 99.6 74.4 4.82 2800 100.0 65000 8704 1.281 !DANGEROUS LOAD-DO NOT USE!
Bofors RP5 NT ~approximation 107.0 82.0 5.31 2798 97.7 61456 10137 1.282 ! Near Maximum !
Norma URP 97.5 72.5 4.70 2798 100.0 65000 8986 1.278 !DANGEROUS LOAD-DO NOT USE!
Bofors RP19 ~approximation 97.5 72.5 4.70 2798 100.0 65000 8983 1.278 !DANGEROUS LOAD-DO NOT USE!
Somchem S385 102.6 78.0 5.05 2797 100.0 65000 9309 1.283 !DANGEROUS LOAD-DO NOT USE!
Hodgdon H4831 107.0 78.1 5.06 2793 98.9 63417 9701 1.274 !DANGEROUS LOAD-DO NOT USE!
Accurate 4350 101.0 72.6 4.70 2792 100.0 65000 8920 1.295 !DANGEROUS LOAD-DO NOT USE!
Winchester Supreme 780 100.9 80.0 5.18 2788 99.8 65000 9321 1.269 !DANGEROUS LOAD-DO NOT USE!
Bofors RP4 NT ~approximation 98.0 74.8 4.84 2785 100.0 65000 9137 1.278 !DANGEROUS LOAD-DO NOT USE!
Rottweil R904 101.2 75.0 4.86 2783 99.4 65000 9362 1.268 !DANGEROUS LOAD-DO NOT USE!
Alliant Reloder-25 107.0 80.0 5.18 2783 100.0 55329 9804 1.338 ! Near Maximum !
IMR 4831 102.3 73.6 4.77 2779 100.0 65000 8776 1.287 !DANGEROUS LOAD-DO NOT USE!
Ramshot BigGame 91.0 70.7 4.58 2774 100.0 65000 8677 1.278 !DANGEROUS LOAD-DO NOT USE!
SNPE Vectan SP 11 91.2 70.8 4.59 2773 100.0 65000 8665 1.278 !DANGEROUS LOAD-DO NOT USE!
Hodgdon H4350 100.0 73.5 4.76 2770 100.0 65000 8986 1.272 !DANGEROUS LOAD-DO NOT USE!
IMR 4350 98.1 73.3 4.75 2769 100.0 65000 8962 1.272 !DANGEROUS LOAD-DO NOT USE!
Lovex S070 97.3 72.3 4.69 2769 100.0 65000 8965 1.286 !DANGEROUS LOAD-DO NOT USE!
Bofors RP7 NT ~approximation 92.2 69.9 4.53 2758 100.0 65000 8694 1.262 !DANGEROUS LOAD-DO NOT USE!
Vihtavuori N165 107.0 79.5 5.15 2758 99.9 62996 9069 1.292 ! Near Maximum !
Hodgdon H380 90.2 69.2 4.49 2758 100.0 65000 8682 1.287 !DANGEROUS LOAD-DO NOT USE!
Somchem S361 100.1 80.2 5.20 2755 99.0 65000 9213 1.279 !DANGEROUS LOAD-DO NOT USE!
Rottweil R907 95.1 70.2 4.55 2751 100.0 65000 8868 1.281 !DANGEROUS LOAD-DO NOT USE!
IMR 4007 SSC 92.1 70.2 4.55 2750 100.0 65000 8862 1.282 !DANGEROUS LOAD-DO NOT USE!
Hodgdon Hybrid 100V 100.0 72.7 4.71 2750 100.0 65000 8259 1.281 !DANGEROUS LOAD-DO NOT USE!
Lovex S065 96.2 70.7 4.58 2743 100.0 65000 8615 1.288 !DANGEROUS LOAD-DO NOT USE!
Vihtavuori N160 107.0 77.1 5.00 2742 99.2 63018 9136 1.288 ! Near Maximum !
Norma 203 old 90.4 68.7 4.45 2738 100.0 65000 8356 1.301 !DANGEROUS LOAD-DO NOT USE!
IMR 4320 90.8 67.2 4.35 2738 100.0 65000 8259 1.273 !DANGEROUS LOAD-DO NOT USE!
Bofors RP3 NT ~approximation 93.9 70.1 4.54 2735 100.0 65000 8451 1.274 !DANGEROUS LOAD-DO NOT USE!
Rottweil R903 92.4 68.7 4.45 2734 100.0 65000 8272 1.300 !DANGEROUS LOAD-DO NOT USE!
Somchem S355 92.7 68.1 4.41 2731 100.0 65000 8309 1.294 !DANGEROUS LOAD-DO NOT USE!
Hodgdon VARGET 91.8 66.8 4.33 2727 100.0 65000 8304 1.276 !DANGEROUS LOAD-DO NOT USE!
ADI AR 2208 91.5 66.8 4.33 2727 100.0 65000 8304 1.276 !DANGEROUS LOAD-DO NOT USE!

340 Weatherby - 250 AB - 26" barrel - 65000

Cartridge : .340 Weath. Mag.
Bullet : .338, 250, Nosler AccuBond 57287
Useable Case Capaci: 84.076 grain H2O = 5.459 cm³
Cartridge O.A.L. L6: 3.675 inch = 93.35 mm
Barrel Length : 26.0 inch = 660.4 mm

Predicted Data for Indicated Charges of the Following Powders.
Matching Maximum Pressure: 65000 psi, or 448 MPa
or a maximum loading ratio or filling of 107 %
These calculations refer to your specified settings in QuickLOAD 'Cartridge Dimensions' window.
C A U T I O N : any load listed can result in a powder charge that falls below minimum suggested
loads or exceeds maximum suggested loads as presented in current handloading manuals. Understand
that all of the listed powders can be unsuitable for the given combination of cartridge, bullet
and gun. Actual load order can vary, depending upon lot-to-lot powder and component variations.
USE ONLY FOR COMPARISON !

152 loads produced a Loading Ratio below user-defined minimum of 90%. These powders have been skipped.
Powder type Filling/Loading Ratio Charge Charge Vel. Prop.Burnt P max P muzz B_Time
% Grains Gramm fps % psi psi ms
--------------------------------- -----------------------------------------------------------------
Norma MRP 103.3 83.6 5.41 2942 100.0 65000 10922 1.239 !DANGEROUS LOAD-DO NOT USE!
Vihtavuori N560 105.1 83.2 5.39 2941 99.3 65000 11337 1.234 !DANGEROUS LOAD-DO NOT USE!
Accurate MAGPRO 105.4 86.8 5.63 2935 98.5 65000 11449 1.240 !DANGEROUS LOAD-DO NOT USE!
Ramshot Magnum 107.0 88.8 5.75 2929 99.7 63996 11078 1.232 !DANGEROUS LOAD-DO NOT USE!
IMR 7828 SSC 103.7 82.6 5.35 2925 99.5 65000 10921 1.226 !DANGEROUS LOAD-DO NOT USE!
SNPE Vectan SP 12 107.0 88.5 5.74 2920 99.7 63402 11036 1.238 !DANGEROUS LOAD-DO NOT USE!
PB Clermont PCL 517 107.0 88.5 5.74 2916 99.6 63019 11052 1.241 ! Near Maximum !
Alliant Reloder-22 105.4 82.6 5.35 2915 99.9 65000 10831 1.241 !DANGEROUS LOAD-DO NOT USE!
Bofors RP5/NP ~approximation 105.4 82.6 5.35 2915 99.9 65000 10831 1.241 !DANGEROUS LOAD-DO NOT USE!
Raufoss RA15 105.4 82.6 5.35 2915 99.9 65000 10831 1.241 !DANGEROUS LOAD-DO NOT USE!
ADI AR 2213 104.7 82.0 5.31 2911 99.5 65000 10854 1.225 !DANGEROUS LOAD-DO NOT USE!
Winchester WXR 107.0 82.0 5.32 2882 99.8 62510 10794 1.263 ! Near Maximum !
Rottweil R905 106.6 82.0 5.31 2881 99.2 65000 10611 1.243 !DANGEROUS LOAD-DO NOT USE!
ADI AR 2209 101.5 78.3 5.07 2870 99.9 65000 10260 1.235 !DANGEROUS LOAD-DO NOT USE!
Alliant Reloder-19 102.1 79.1 5.13 2869 99.9 65000 10327 1.242 !DANGEROUS LOAD-DO NOT USE!
Bofors RP14 ~approximation 102.9 79.7 5.17 2862 99.9 65000 10255 1.243 !DANGEROUS LOAD-DO NOT USE!
ADI AP 2214 107.0 86.1 5.58 2858 99.3 61518 10605 1.253 ! Near Maximum !
Ramshot Hunter 97.6 78.1 5.06 2857 100.0 65000 9891 1.249 !DANGEROUS LOAD-DO NOT USE!
Hodgdon H414 92.2 75.6 4.90 2855 100.0 65000 9917 1.251 !DANGEROUS LOAD-DO NOT USE!
Winchester 760 92.2 75.6 4.90 2855 100.0 65000 9917 1.251 !DANGEROUS LOAD-DO NOT USE!
IMR 7828 107.0 80.6 5.22 2853 99.1 59630 10770 1.273 ! Near Maximum !
Hodgdon H4831 SC 103.3 80.9 5.24 2846 99.0 65000 10253 1.240 !DANGEROUS LOAD-DO NOT USE!
Bofors RP4 ~approximation 100.0 77.5 5.02 2844 99.8 65000 10061 1.244 !DANGEROUS LOAD-DO NOT USE!
Raufoss RA4 100.0 77.5 5.02 2844 99.8 65000 10061 1.244 !DANGEROUS LOAD-DO NOT USE!
Norma 204 96.9 77.5 5.02 2844 99.8 65000 10061 1.244 !DANGEROUS LOAD-DO NOT USE!
Bofors RP5 NT ~approximation 107.0 84.6 5.48 2841 97.8 62126 10688 1.255 ! Near Maximum !
Hodgdon H4831 107.0 80.6 5.22 2835 98.9 64158 10226 1.247 !DANGEROUS LOAD-DO NOT USE!
Vihtavuori N550 94.4 74.8 4.84 2832 100.0 65000 9589 1.261 !DANGEROUS LOAD-DO NOT USE!
Somchem S365 99.2 76.4 4.95 2831 100.0 65000 9158 1.262 !DANGEROUS LOAD-DO NOT USE!
Somchem S385 102.3 80.1 5.19 2830 100.0 65000 9800 1.263 !DANGEROUS LOAD-DO NOT USE!
Norma URP 97.1 74.5 4.83 2830 100.0 65000 9449 1.258 !DANGEROUS LOAD-DO NOT USE!
Bofors RP19 ~approximation 97.2 74.5 4.83 2829 100.0 65000 9447 1.258 !DANGEROUS LOAD-DO NOT USE!
Alliant Reloder-25 107.0 82.5 5.34 2825 100.0 56046 10333 1.311 ! Near Maximum !
Accurate 4350 100.6 74.6 4.83 2824 100.0 65000 9385 1.275 !DANGEROUS LOAD-DO NOT USE!
Winchester Supreme 780 100.6 82.2 5.33 2821 99.8 65000 9811 1.249 !DANGEROUS LOAD-DO NOT USE!
Bofors RP4 NT ~approximation 97.6 76.8 4.98 2817 100.0 65000 9613 1.257 !DANGEROUS LOAD-DO NOT USE!
Rottweil R904 100.9 77.1 5.00 2816 99.4 65000 9846 1.247 !DANGEROUS LOAD-DO NOT USE!
IMR 4831 101.9 75.6 4.90 2811 100.0 65000 9233 1.267 !DANGEROUS LOAD-DO NOT USE!
Ramshot BigGame 90.7 72.6 4.70 2805 100.0 65000 9121 1.258 !DANGEROUS LOAD-DO NOT USE!
SNPE Vectan SP 11 90.8 72.7 4.71 2804 100.0 65000 9109 1.258 !DANGEROUS LOAD-DO NOT USE!
Hodgdon H4350 99.6 75.5 4.89 2802 100.0 65000 9453 1.251 !DANGEROUS LOAD-DO NOT USE!
IMR 4350 97.8 75.4 4.88 2801 100.0 65000 9428 1.251 !DANGEROUS LOAD-DO NOT USE!
Lovex S070 96.9 74.3 4.81 2801 100.0 65000 9429 1.266 !DANGEROUS LOAD-DO NOT USE!
Vihtavuori N165 107.0 82.0 5.32 2800 99.9 63747 9563 1.264 !DANGEROUS LOAD-DO NOT USE!
Bofors RP7 NT ~approximation 91.9 71.9 4.66 2790 100.0 65000 9141 1.241 !DANGEROUS LOAD-DO NOT USE!
Somchem S361 99.8 82.4 5.34 2789 98.9 65000 9695 1.258 !DANGEROUS LOAD-DO NOT USE!
Vihtavuori N160 107.0 79.5 5.15 2784 99.2 63702 9631 1.261 !DANGEROUS LOAD-DO NOT USE!
Rottweil R907 94.8 72.1 4.67 2782 100.0 65000 9323 1.261 !DANGEROUS LOAD-DO NOT USE!
IMR 4007 SSC 91.8 72.1 4.67 2782 100.0 65000 9317 1.261 !DANGEROUS LOAD-DO NOT USE!
Hodgdon Hybrid 100V 99.7 74.7 4.84 2782 100.0 65000 8691 1.261 !DANGEROUS LOAD-DO NOT USE!
Lovex S065 95.9 72.7 4.71 2774 100.0 65000 9057 1.267 !DANGEROUS LOAD-DO NOT USE!
IMR 4320 90.5 69.0 4.47 2769 100.0 65000 8680 1.253 !DANGEROUS LOAD-DO NOT USE!
Norma 203 old 90.0 70.5 4.57 2769 100.0 65000 8782 1.280 !DANGEROUS LOAD-DO NOT USE!
Bofors RP3 NT ~approximation 93.6 72.0 4.67 2766 100.0 65000 8886 1.253 !DANGEROUS LOAD-DO NOT USE!
Rottweil R903 92.0 70.6 4.57 2764 100.0 65000 8696 1.280 !DANGEROUS LOAD-DO NOT USE!
Somchem S355 92.3 70.0 4.54 2762 100.0 65000 8732 1.274 !DANGEROUS LOAD-DO NOT USE!
Vihtavuori N570 107.0 87.4 5.67 2761 93.4 49449 11767 1.384
Norma MRP 2 107.0 82.9 5.37 2758 98.4 51283 10916 1.374
ADI AR 2208 91.2 68.6 4.45 2758 100.0 65000 8723 1.255 !DANGEROUS LOAD-DO NOT USE!
Hodgdon VARGET 91.5 68.6 4.45 2758 100.0 65000 8723 1.255 !DANGEROUS LOAD-DO NOT USE!
Alliant Reloder 33 107.0 91.1 5.91 2756 94.3 49751 11677 1.381
IMR 4064 92.0 67.3 4.36 2746 100.0 65000 8524 1.261 !DANGEROUS LOAD-DO NOT USE!
Accurate 2700 92.9 74.4 4.82 2736 100.0 65000 8804 1.266 !DANGEROUS LOAD-DO NOT USE!
Accurate 4064 93.6 67.8 4.39 2718 100.0 65000 8219 1.304 !DANGEROUS LOAD-DO NOT USE!
Vihtavuori N150 97.4 71.2 4.61 2718 100.0 65000 8245 1.276 !DANGEROUS LOAD-DO NOT USE!
Lovex S071 107.0 78.4 5.08 2706 100.0 56332 9323 1.361 ! Near Maximum !
Accurate 3100 107.0 78.4 5.08 2706 100.0 56332 9323 1.361 ! Near Maximum !

338 RUM - 250 AB - 26" barrel - 65000PSI

Cartridge : .338 Rem Ultra Mag
Bullet : .338, 250, Nosler AccuBond 57287
Useable Case Capaci: 93.849 grain H2O = 6.093 cm³
Cartridge O.A.L. L6: 3.600 inch = 91.44 mm
Barrel Length : 26.0 inch = 660.4 mm

Predicted Data for Indicated Charges of the Following Powders.
Matching Maximum Pressure: 65000 psi, or 448 MPa
or a maximum loading ratio or filling of 107 %
These calculations refer to your specified settings in QuickLOAD 'Cartridge Dimensions' window.
C A U T I O N : any load listed can result in a powder charge that falls below minimum suggested
loads or exceeds maximum suggested loads as presented in current handloading manuals. Understand
that all of the listed powders can be unsuitable for the given combination of cartridge, bullet
and gun. Actual load order can vary, depending upon lot-to-lot powder and component variations.
USE ONLY FOR COMPARISON !

170 loads produced a Loading Ratio below user-defined minimum of 90%. These powders have been skipped.
Powder type Filling/Loading Ratio Charge Charge Vel. Prop.Burnt P max P muzz B_Time
% Grains Gramm fps % psi psi ms
--------------------------------- -----------------------------------------------------------------
Vihtavuori N570 107.0 97.6 6.32 2947 98.3 61708 12698 1.303 ! Near Maximum !
Alliant Reloder 33 107.0 101.7 6.59 2945 98.9 62642 12501 1.297 ! Near Maximum !
Vihtavuori N560 99.5 87.9 5.70 2920 99.9 65000 11466 1.279 !DANGEROUS LOAD-DO NOT USE!
Ramshot Magnum 101.8 94.3 6.11 2919 100.0 65000 11146 1.274 !DANGEROUS LOAD-DO NOT USE!
PB Clermont PCL 517 102.2 94.3 6.11 2918 100.0 65000 11136 1.275 !DANGEROUS LOAD-DO NOT USE!
SNPE Vectan SP 12 102.0 94.2 6.10 2917 100.0 65000 11109 1.275 !DANGEROUS LOAD-DO NOT USE!
Accurate MAGPRO 99.7 91.7 5.94 2915 99.5 65000 11625 1.287 !DANGEROUS LOAD-DO NOT USE!
Norma MRP 97.6 88.1 5.71 2910 100.0 65000 10962 1.287 !DANGEROUS LOAD-DO NOT USE!
IMR 7828 SSC 98.3 87.4 5.66 2908 100.0 65000 11047 1.270 !DANGEROUS LOAD-DO NOT USE!
IMR 7828 103.9 87.4 5.66 2908 100.0 65000 11047 1.270 !DANGEROUS LOAD-DO NOT USE!
Norma MRP 2 107.0 92.6 6.00 2907 100.0 63830 11341 1.300 !DANGEROUS LOAD-DO NOT USE!
Alliant Reloder-25 105.4 90.7 5.88 2903 100.0 65000 10535 1.278 !DANGEROUS LOAD-DO NOT USE!
ADI AR 2213 99.5 87.0 5.64 2898 100.0 65000 11001 1.267 !DANGEROUS LOAD-DO NOT USE!
ADI AP 2214 103.3 92.7 6.01 2895 100.0 65000 10774 1.265 !DANGEROUS LOAD-DO NOT USE!
Alliant Reloder-22 99.8 87.2 5.65 2890 100.0 65000 10890 1.286 !DANGEROUS LOAD-DO NOT USE!
Raufoss RA15 99.8 87.2 5.65 2890 100.0 65000 10890 1.286 !DANGEROUS LOAD-DO NOT USE!
Bofors RP5/NP ~approximation 99.8 87.2 5.65 2890 100.0 65000 10890 1.286 !DANGEROUS LOAD-DO NOT USE!
Winchester WXR 102.4 87.7 5.68 2890 100.0 65000 10914 1.287 !DANGEROUS LOAD-DO NOT USE!
Bofors RP5 NT ~approximation 103.2 91.0 5.90 2873 99.4 65000 11033 1.270 !DANGEROUS LOAD-DO NOT USE!
Rottweil R905 101.1 86.8 5.62 2866 99.9 65000 10775 1.286 !DANGEROUS LOAD-DO NOT USE!
ADI AR 2209 96.4 83.0 5.38 2854 100.0 65000 10381 1.275 !DANGEROUS LOAD-DO NOT USE!
Alliant Reloder-19 97.0 83.9 5.44 2852 100.0 65000 10434 1.282 !DANGEROUS LOAD-DO NOT USE!
Hodgdon H1000 107.0 91.6 5.93 2849 100.0 61518 10702 1.296 ! Near Maximum !
Bofors RP14 ~approximation 97.7 84.5 5.48 2845 100.0 65000 10361 1.283 !DANGEROUS LOAD-DO NOT USE!
Hodgdon H4831 SC 98.2 85.9 5.57 2836 99.8 65000 10456 1.280 !DANGEROUS LOAD-DO NOT USE!
Hodgdon H4831 102.2 85.9 5.57 2836 99.8 65000 10456 1.280 !DANGEROUS LOAD-DO NOT USE!
Ramshot Hunter 92.6 82.7 5.36 2834 100.0 65000 9995 1.291 !DANGEROUS LOAD-DO NOT USE!
Raufoss RA4 95.1 82.3 5.33 2832 100.0 65000 10200 1.282 !DANGEROUS LOAD-DO NOT USE!
Bofors RP4 ~approximation 95.1 82.3 5.33 2832 100.0 65000 10200 1.282 !DANGEROUS LOAD-DO NOT USE!
Norma 204 92.1 82.3 5.33 2832 100.0 65000 10200 1.282 !DANGEROUS LOAD-DO NOT USE!
ADI AR 2218 107.0 98.6 6.39 2829 97.0 53954 12618 1.365
Somchem S385 97.1 84.9 5.50 2811 100.0 65000 9888 1.304 !DANGEROUS LOAD-DO NOT USE!
Hodgdon Retumbo 107.0 93.1 6.03 2810 100.0 54388 10931 1.372 ! Near Maximum !
Rottweil R904 96.1 82.0 5.31 2809 99.9 65000 10043 1.283 !DANGEROUS LOAD-DO NOT USE!
Norma URP 92.2 78.9 5.11 2807 100.0 65000 9586 1.297 !DANGEROUS LOAD-DO NOT USE!
Bofors RP19 ~approximation 92.2 78.9 5.11 2807 100.0 65000 9583 1.297 !DANGEROUS LOAD-DO NOT USE!
Winchester Supreme 780 95.7 87.3 5.66 2806 100.0 65000 9921 1.291 !DANGEROUS LOAD-DO NOT USE!
Bofors RP4 NT ~approximation 92.8 81.5 5.28 2802 100.0 65000 9735 1.296 !DANGEROUS LOAD-DO NOT USE!
Accurate 4350 95.3 78.9 5.11 2801 100.0 65000 9515 1.316 !DANGEROUS LOAD-DO NOT USE!
Somchem S365 93.7 80.6 5.22 2797 100.0 65000 9274 1.308 !DANGEROUS LOAD-DO NOT USE!
Vihtavuori N165 102.2 87.5 5.67 2796 100.0 65000 9671 1.296 !DANGEROUS LOAD-DO NOT USE!
Vihtavuori N160 102.6 85.1 5.51 2792 99.9 65000 9853 1.287 !DANGEROUS LOAD-DO NOT USE!
Hodgdon H4350 94.9 80.3 5.20 2791 100.0 65000 9590 1.287 !DANGEROUS LOAD-DO NOT USE!
IMR 4350 93.1 80.1 5.19 2790 100.0 65000 9566 1.287 !DANGEROUS LOAD-DO NOT USE!
Lovex S071 105.6 86.4 5.60 2789 100.0 65000 9542 1.321 !DANGEROUS LOAD-DO NOT USE!
Accurate 3100 105.6 86.4 5.60 2789 100.0 65000 9542 1.321 !DANGEROUS LOAD-DO NOT USE!
IMR 4831 96.6 80.1 5.19 2788 100.0 65000 9363 1.307 !DANGEROUS LOAD-DO NOT USE!
Lovex S070 92.2 78.9 5.11 2787 100.0 65000 9571 1.302 !DANGEROUS LOAD-DO NOT USE!
Somchem S361 95.1 87.6 5.68 2781 99.8 65000 9896 1.296 !DANGEROUS LOAD-DO NOT USE!
Rottweil R907 90.4 76.8 4.98 2776 100.0 65000 9490 1.294 !DANGEROUS LOAD-DO NOT USE!
Lovex D100 107.0 99.6 6.45 2771 94.0 62396 10696 1.315 ! Near Maximum !
Lovex S065 91.3 77.3 5.01 2761 100.0 65000 9220 1.302 !DANGEROUS LOAD-DO NOT USE!
Vihtavuori 24N41 107.0 98.6 6.39 2761 92.0 56837 11304 1.350 ! Near Maximum !
Hodgdon Hybrid 100V 94.5 79.1 5.13 2757 100.0 65000 8837 1.302 !DANGEROUS LOAD-DO NOT USE!
Hodgdon H870 107.0 95.6 6.19 2729 97.4 48955 11743 1.450
Alliant Reloder-50 107.0 100.1 6.49 2710 95.1 47475 12159 1.494
Vihtavuori N170 107.0 91.6 5.93 2708 95.8 56124 10603 1.390 ! Near Maximum !

All are very close to my eyes. Can't really see one getting too much over on the other when loaded the same. Pretty impressive..

Then here is all three with a powder like Magpro that sits at the top for all three, in Quickload..

Cartridge : .338-375 Ruger
Bullet : .338, 250, Nosler AccuBond 57287
Useable Case Capaci: 81.531 grain H2O = 5.294 cm³
Cartridge O.A.L. L6: 3.340 inch = 84.84 mm
Barrel Length : 26.0 inch = 660.4 mm
Powder : Accurate MAGPRO

Predicted data by increasing and decreasing the given charge,
incremented in steps of 2.0% of nominal charge.
CAUTION: Figures exceed maximum and minimum recommended loads !

Step Fill. Charge Vel. Energy Pmax Pmuz Prop.Burnt B_Time
% % Grains fps ft.lbs psi psi % ms

-20.0 84 67.12 2262 2840 30721 8506 87.5 1.753
-18.0 86 68.80 2323 2995 32957 8796 89.0 1.704
-16.0 88 70.48 2384 3155 35366 9077 90.4 1.656
-14.0 90 72.15 2445 3319 37973 9347 91.7 1.606
-12.0 92 73.83 2507 3489 40786 9606 92.9 1.554
-10.0 95 75.51 2569 3663 43832 9851 94.0 1.503
-08.0 97 77.19 2631 3842 47130 10081 95.1 1.453
-06.0 99 78.87 2693 4026 50708 10296 96.1 1.406
-04.0 101 80.54 2755 4214 54593 10493 96.9 1.360 ! Near Maximum !
-02.0 103 82.22 2818 4407 58808 10671 97.7 1.316 ! Near Maximum !
+00.0 105 83.90 2880 4603 63354 10829 98.3 1.274 !DANGEROUS LOAD-DO NOT USE!
+02.0 107 85.58 2942 4804 68289 10966 98.9 1.233 !DANGEROUS LOAD-DO NOT USE!
+04.0 109 87.26 3004 5009 73658 11081 99.3 1.193 !DANGEROUS LOAD-DO NOT USE!
+06.0 111 88.93 3066 5218 79510 11172 99.7 1.155 !DANGEROUS LOAD-DO NOT USE!
+08.0 113 90.61 3128 5430 85904 11238 99.9 1.118 !DANGEROUS LOAD-DO NOT USE!
+10.0 116 92.29 3189 5646 92907 11278 100.0 1.082 !DANGEROUS LOAD-DO NOT USE!

Results caused by ± 10% powder lot-to-lot burning rate variation using nominal charge
Data for burning rate increased by 10% relative to nominal value:
+Ba 105 83.90 3024 5076 77973 10498 100.0 1.172 !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba 105 83.90 2681 3989 49897 10518 91.8 1.408

340 WBY

Cartridge : .340 Weath. Mag.
Bullet : .338, 250, Nosler AccuBond 57287
Useable Case Capaci: 84.076 grain H2O = 5.459 cm³
Cartridge O.A.L. L6: 3.675 inch = 93.35 mm
Barrel Length : 26.0 inch = 660.4 mm
Powder : Accurate MAGPRO

Predicted data by increasing and decreasing the given charge,
incremented in steps of 2.0% of nominal charge.
CAUTION: Figures exceed maximum and minimum recommended loads !

Step Fill. Charge Vel. Energy Pmax Pmuz Prop.Burnt B_Time
% % Grains fps ft.lbs psi psi % ms

-20.0 81 67.12 2219 2735 28615 8567 85.7 1.779
-18.0 84 68.80 2279 2883 30621 8874 87.2 1.732
-16.0 86 70.48 2339 3037 32777 9174 88.6 1.685
-14.0 88 72.15 2399 3196 35098 9465 90.0 1.639
-12.0 90 73.83 2460 3359 37597 9747 91.3 1.592
-10.0 92 75.51 2521 3528 40291 10018 92.5 1.541
-08.0 94 77.19 2582 3701 43197 10276 93.7 1.492
-06.0 96 78.87 2643 3879 46333 10520 94.7 1.444
-04.0 98 80.54 2705 4061 49728 10749 95.7 1.398
-02.0 100 82.22 2766 4248 53400 10962 96.5 1.353
+00.0 102 83.90 2828 4439 57370 11157 97.3 1.311 ! Near Maximum !
+02.0 104 85.58 2890 4635 61638 11333 98.0 1.269 ! Near Maximum !
+04.0 106 87.26 2951 4835 66252 11489 98.6 1.229 !DANGEROUS LOAD-DO NOT USE!
+06.0 108 88.93 3013 5038 71254 11623 99.1 1.191 !DANGEROUS LOAD-DO NOT USE!
+08.0 110 90.61 3074 5246 76684 11735 99.5 1.154 !DANGEROUS LOAD-DO NOT USE!
+10.0 112 92.29 3136 5458 82592 11823 99.8 1.117 !DANGEROUS LOAD-DO NOT USE!

Results caused by ± 10% powder lot-to-lot burning rate variation using nominal charge
Data for burning rate increased by 10% relative to nominal value:
+Ba 102 83.90 2981 4932 70616 10974 100.0 1.204 !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba 102 83.90 2623 3820 45298 10679 89.9 1.450


338 RUM

Cartridge : .338 Rem Ultra Mag
Bullet : .338, 250, Nosler AccuBond 57287
Useable Case Capaci: 93.849 grain H2O = 6.093 cm³
Cartridge O.A.L. L6: 3.600 inch = 91.44 mm
Barrel Length : 26.0 inch = 660.4 mm
Powder : Accurate MAGPRO

Predicted data by increasing and decreasing the given charge,
incremented in steps of 2.0% of nominal charge.
CAUTION: Figures exceed maximum and minimum recommended loads !

Step Fill. Charge Vel. Energy Pmax Pmuz Prop.Burnt B_Time
% % Grains fps ft.lbs psi psi % ms

-20.0 80 73.57 2326 3002 32568 9439 90.9 1.750
-18.0 82 75.41 2386 3160 34944 9732 92.2 1.703
-16.0 84 77.25 2446 3321 37503 10013 93.4 1.656
-14.0 86 79.09 2506 3487 40254 10280 94.6 1.602
-12.0 88 80.92 2566 3656 43177 10531 95.6 1.550
-10.0 90 82.76 2627 3830 46297 10766 96.5 1.501
-08.0 92 84.60 2687 4006 49645 10982 97.4 1.453
-06.0 94 86.44 2746 4187 53238 11180 98.1 1.408
-04.0 96 88.28 2806 4370 57097 11356 98.7 1.364 ! Near Maximum !
-02.0 98 90.12 2865 4557 61245 11511 99.2 1.322 ! Near Maximum !
+00.0 100 91.96 2924 4746 65708 11643 99.6 1.281 !DANGEROUS LOAD-DO NOT USE!
+02.0 102 93.80 2983 4938 70515 11751 99.8 1.242 !DANGEROUS LOAD-DO NOT USE!
+04.0 104 95.64 3041 5133 75697 11834 100.0 1.204 !DANGEROUS LOAD-DO NOT USE!
+06.0 106 97.48 3099 5330 81294 11892 100.0 1.167 !DANGEROUS LOAD-DO NOT USE!
+08.0 108 99.32 3156 5528 87346 11939 100.0 1.132 !DANGEROUS LOAD-DO NOT USE!
+10.0 110 101.16 3212 5729 93903 11982 100.0 1.098 !DANGEROUS LOAD-DO NOT USE!

Results caused by ± 10% powder lot-to-lot burning rate variation using nominal charge
Data for burning rate increased by 10% relative to nominal value:
+Ba 100 91.96 3052 5169 79764 11173 100.0 1.183 !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba 100 91.96 2740 4168 52085 11547 94.8 1.413

Good for comparison sake I guess. Pretty fun seeing where they all fall out.
 
usmc 89":2v340fji said:
nice, always good to see someone building something you cant buy off the shelf. scotty if you do find someone to chamber your old barrel do it and form all of your brass in it. you should be able to go from the 375 to the 338 in one shot in the full length die "case lube will be important here" you wont need a form die because your not changing the shoulder or the neck just reducing the neck diameter, you may have to turn the necks depending on the reamer and what your neck mics out at. you should get a print with the reamer if you dont ask for one. dave tooley from tooley custom rifles has built these and sells reamers and dies for it i would call him and for any questions regarding the forming proccess, what reamer to use and load data. tooley custom rifles 1-704-864-7525
Click to expand...

Jeff,

Thanks buddy! I will make sure and call this guy along with a few more that need to be made for this build.
 
It does launch a goodly mass at a higher velocity. It should stomp anything in these woods.
 
Here it is...

Cartridge : .338-375 Ruger
Bullet : .338, 225, Nosler AccuBond 54357
Useable Case Capaci: 84.185 grain H2O = 5.466 cm³
Cartridge O.A.L. L6: 3.340 inch = 84.84 mm
Barrel Length : 26.0 inch = 660.4 mm

Predicted Data for Indicated Charges of the Following Powders.
Matching Maximum Pressure: 65000 psi, or 448 MPa
or a maximum loading ratio or filling of 107 %
These calculations refer to your specified settings in QuickLOAD 'Cartridge Dimensions' window.
C A U T I O N : any load listed can result in a powder charge that falls below minimum suggested
loads or exceeds maximum suggested loads as presented in current handloading manuals. Understand
that all of the listed powders can be unsuitable for the given combination of cartridge, bullet
and gun. Actual load order can vary, depending upon lot-to-lot powder and component variations.
USE ONLY FOR COMPARISON !

142 loads produced a Loading Ratio below user-defined minimum of 90%. These powders have been skipped.
Powder type Filling/Loading Ratio Charge Charge Vel. Prop.Burnt P max P muzz B_Time
% Grains Gramm fps % psi psi ms
--------------------------------- -----------------------------------------------------------------
Norma MRP 105.4 85.3 5.53 3069 100.0 65000 10786 1.198 !DANGEROUS LOAD-DO NOT USE!
Vihtavuori N560 107.0 84.8 5.50 3058 98.8 64683 11113 1.198 !DANGEROUS LOAD-DO NOT USE!
IMR 7828 SSC 105.6 84.2 5.45 3043 99.1 65000 10719 1.188 !DANGEROUS LOAD-DO NOT USE!
Accurate MAGPRO 107.0 88.3 5.72 3042 97.7 64235 11161 1.208 !DANGEROUS LOAD-DO NOT USE!
ADI AR 2213 106.5 83.5 5.41 3028 99.0 65000 10643 1.188 !DANGEROUS LOAD-DO NOT USE!
Bofors RP5/NP ~approximation 107.0 83.9 5.44 3026 99.7 64151 10648 1.209 !DANGEROUS LOAD-DO NOT USE!
Raufoss RA15 107.0 83.9 5.44 3026 99.7 64151 10648 1.209 !DANGEROUS LOAD-DO NOT USE!
Alliant Reloder-22 107.0 83.9 5.44 3026 99.7 64151 10648 1.209 !DANGEROUS LOAD-DO NOT USE!
ADI AR 2209 103.4 79.8 5.17 2991 99.6 65000 10107 1.195 !DANGEROUS LOAD-DO NOT USE!
Alliant Reloder-19 104.0 80.7 5.23 2990 99.6 65000 10172 1.203 !DANGEROUS LOAD-DO NOT USE!
Bofors RP14 ~approximation 104.8 81.3 5.27 2983 99.6 65000 10097 1.204 !DANGEROUS LOAD-DO NOT USE!
Ramshot Hunter 99.5 79.7 5.17 2982 100.0 65000 9782 1.209 !DANGEROUS LOAD-DO NOT USE!
Ramshot Magnum 107.0 88.9 5.76 2981 98.8 59621 10757 1.233 ! Near Maximum !
Hodgdon H414 94.0 77.2 5.00 2981 100.0 65000 9825 1.211 !DANGEROUS LOAD-DO NOT USE!
Winchester 760 94.0 77.2 5.00 2981 100.0 65000 9825 1.211 !DANGEROUS LOAD-DO NOT USE!
SNPE Vectan SP 12 107.0 88.6 5.74 2972 98.8 59063 10715 1.239 ! Near Maximum !
PB Clermont PCL 517 107.0 88.6 5.74 2967 98.7 58712 10724 1.242 ! Near Maximum !
Alliant Reloder-17 91.7 74.7 4.84 2966 100.0 65000 9227 1.199 !DANGEROUS LOAD-DO NOT USE!
Raufoss RA4 101.8 79.0 5.12 2964 99.5 65000 9907 1.205 !DANGEROUS LOAD-DO NOT USE!
Norma 204 98.6 79.0 5.12 2964 99.5 65000 9907 1.205 !DANGEROUS LOAD-DO NOT USE!
Bofors RP4 ~approximation 101.8 79.0 5.12 2964 99.5 65000 9907 1.205 !DANGEROUS LOAD-DO NOT USE!
Somchem S365 101.3 78.2 5.06 2964 100.0 65000 9063 1.219 !DANGEROUS LOAD-DO NOT USE!
Hodgdon H4831 SC 105.1 82.4 5.34 2962 98.4 65000 10040 1.201 !DANGEROUS LOAD-DO NOT USE!
Vihtavuori N550 96.2 76.3 4.94 2959 100.0 65000 9491 1.221 !DANGEROUS LOAD-DO NOT USE!
Norma URP 99.0 76.0 4.93 2958 100.0 65000 9356 1.217 !DANGEROUS LOAD-DO NOT USE!
Bofors RP19 ~approximation 99.1 76.1 4.93 2957 100.0 65000 9354 1.217 !DANGEROUS LOAD-DO NOT USE!
Rottweil R905 107.0 82.4 5.34 2956 98.3 61753 10308 1.231 ! Near Maximum !
Accurate 4350 102.6 76.2 4.94 2953 100.0 65000 9299 1.233 !DANGEROUS LOAD-DO NOT USE!
Somchem S385 104.2 81.7 5.30 2951 99.9 65000 9672 1.223 !DANGEROUS LOAD-DO NOT USE!
Winchester WXR 107.0 82.1 5.32 2945 99.1 58387 10501 1.260 ! Near Maximum !
Bofors RP4 NT ~approximation 99.4 78.3 5.08 2939 100.0 65000 9504 1.218 !DANGEROUS LOAD-DO NOT USE!
IMR 4831 103.9 77.2 5.00 2938 100.0 65000 9139 1.226 !DANGEROUS LOAD-DO NOT USE!
Winchester Supreme 780 102.3 83.7 5.43 2938 99.5 65000 9637 1.210 !DANGEROUS LOAD-DO NOT USE!
Ramshot BigGame 92.5 74.1 4.80 2934 100.0 65000 9034 1.216 !DANGEROUS LOAD-DO NOT USE!
Rottweil R904 102.7 78.6 5.09 2933 98.9 65000 9672 1.208 !DANGEROUS LOAD-DO NOT USE!
SNPE Vectan SP 11 92.6 74.2 4.81 2933 100.0 65000 9021 1.217 !DANGEROUS LOAD-DO NOT USE!
Lovex S070 98.7 75.8 4.91 2923 100.0 65000 9336 1.226 !DANGEROUS LOAD-DO NOT USE!
Hodgdon H4350 101.5 77.0 4.99 2923 99.9 65000 9340 1.212 !DANGEROUS LOAD-DO NOT USE!
IMR 4350 99.6 76.9 4.98 2922 99.9 65000 9318 1.212 !DANGEROUS LOAD-DO NOT USE!
Alliant Reloder-15 90.3 70.0 4.54 2918 100.0 65000 8918 1.223 !DANGEROUS LOAD-DO NOT USE!
Bofors RP11 ~approximation 90.3 70.0 4.54 2918 100.0 65000 8918 1.223 !DANGEROUS LOAD-DO NOT USE!
Raufoss RA11 90.3 70.0 4.54 2918 100.0 65000 8918 1.223 !DANGEROUS LOAD-DO NOT USE!
Hodgdon H380 91.5 72.6 4.70 2915 100.0 65000 9044 1.226 !DANGEROUS LOAD-DO NOT USE!
Bofors RP7 NT ~approximation 93.6 73.3 4.75 2914 100.0 65000 9055 1.201 !DANGEROUS LOAD-DO NOT USE!
Norma 203B 90.7 70.4 4.56 2912 100.0 65000 8850 1.225 !DANGEROUS LOAD-DO NOT USE!
ADI AP 2214 107.0 86.2 5.59 2911 98.2 57737 10266 1.251 ! Near Maximum !
Hodgdon Hybrid 100V 101.6 76.3 4.94 2910 100.0 65000 8600 1.219 !DANGEROUS LOAD-DO NOT USE!
IMR 7828 107.0 80.7 5.23 2910 97.9 55876 10423 1.270 ! Near Maximum !
Rottweil R907 96.5 73.5 4.76 2903 99.9 65000 9220 1.221 !DANGEROUS LOAD-DO NOT USE!
IMR 4007 SSC 93.4 73.5 4.77 2903 99.9 65000 9214 1.221 !DANGEROUS LOAD-DO NOT USE!
Somchem S361 101.5 83.9 5.44 2900 98.4 65000 9483 1.220 !DANGEROUS LOAD-DO NOT USE!
Norma 203 old 91.8 72.0 4.67 2899 100.0 65000 8704 1.238 !DANGEROUS LOAD-DO NOT USE!
Bofors RP5 NT ~approximation 107.0 84.7 5.49 2898 96.2 58610 10260 1.250 ! Near Maximum !
Lovex S065 97.6 74.1 4.80 2898 100.0 65000 8969 1.227 !DANGEROUS LOAD-DO NOT USE!
IMR 4320 92.2 70.4 4.56 2898 100.0 65000 8604 1.211 !DANGEROUS LOAD-DO NOT USE!
Hodgdon H4831 107.0 80.7 5.23 2898 97.8 60271 9884 1.242 ! Near Maximum !
Rottweil R903 93.9 72.1 4.67 2894 100.0 65000 8621 1.238 !DANGEROUS LOAD-DO NOT USE!
Somchem S355 94.1 71.5 4.63 2891 100.0 65000 8654 1.232 !DANGEROUS LOAD-DO NOT USE!
Bofors RP3 NT ~approximation 95.2 73.4 4.76 2890 100.0 65000 8797 1.213 !DANGEROUS LOAD-DO NOT USE!
Alliant Reloder-25 107.0 82.6 5.35 2886 100.0 52354 10153 1.309
ADI AR 2208 92.9 70.0 4.53 2885 100.0 65000 8643 1.214 !DANGEROUS LOAD-DO NOT USE!
Hodgdon VARGET 93.2 70.0 4.53 2885 100.0 65000 8643 1.214 !DANGEROUS LOAD-DO NOT USE!
IMR 4064 93.7 68.7 4.45 2874 100.0 65000 8455 1.219 !DANGEROUS LOAD-DO NOT USE!
Vihtavuori N165 107.0 82.1 5.32 2865 99.5 59810 9330 1.259 ! Near Maximum !
Lovex S062 91.3 68.9 4.47 2863 100.0 65000 8325 1.234 !DANGEROUS LOAD-DO NOT USE!
Accurate 2700 94.5 75.7 4.91 2853 99.8 65000 8690 1.227 !DANGEROUS LOAD-DO NOT USE!
Vihtavuori N160 107.0 79.6 5.16 2850 98.3 60145 9332 1.253 ! Near Maximum !
Accurate 4064 95.6 69.3 4.49 2850 100.0 65000 8159 1.261 !DANGEROUS LOAD-DO NOT USE!
Rottweil R902 90.4 67.6 4.38 2847 100.0 65000 8191 1.237 !DANGEROUS LOAD-DO NOT USE!
Vihtavuori N150 99.2 72.6 4.71 2844 100.0 65000 8158 1.233 !DANGEROUS LOAD-DO NOT USE!
Vihtavuori N540 90.1 70.7 4.58 2841 100.0 65000 8202 1.234 !DANGEROUS LOAD-DO NOT USE!
Norma MRP 2 107.0 83.0 5.38 2804 96.8 47598 10511 1.376
Vihtavuori N135 95.5 67.2 4.35 2794 100.0 65000 7534 1.247 !DANGEROUS LOAD-DO NOT USE!
Vihtavuori N570 107.0 87.6 5.67 2793 90.7 46101 11135 1.388
Alliant Reloder 33 107.0 91.3 5.91 2787 91.7 46369 11055 1.386
Accurate 3100 107.0 78.5 5.09 2767 99.7 52478 9140 1.360
Lovex S071 107.0 78.5 5.09 2767 99.7 52478 9140 1.360
Hodgdon H1000 107.0 82.1 5.32 2743 96.0 47911 9818 1.362
Vihtavuori N133 90.1 64.0 4.14 2743 100.0 65000 7123 1.239 !DANGEROUS LOAD-DO NOT USE!
Hodgdon Retumbo 107.0 83.5 5.41 2694 97.7 41692 10300 1.451
Lovex D100 107.0 89.4 5.79 2641 85.2 47844 9111 1.388
ADI AR 2218 107.0 88.5 5.73 2633 85.9 41622 10584 1.456
Vihtavuori 24N41 107.0 88.5 5.73 2611 81.9 44203 9438 1.427
Vihtavuori N170 107.0 82.1 5.32 2594 88.1 43532 9148 1.463
Hodgdon H870 107.0 85.7 5.56 2566 88.4 36770 10087 1.547
Alliant Reloder-50 107.0 89.8 5.82 2512 84.0 33827 10180 1.612
Bofors 12,7mmRA NC1214 Lot20115087 107.0 87.8 5.69 2471 76.3 36050 9349 1.613
Hodgdon 50BMG 107.0 84.3 5.46 2429 73.4 35997 8680 1.574
Hodgdon US 869 107.0 88.5 5.73 2428 77.5 35720 8736 1.581
SNPE Vectan SP 13 107.0 84.8 5.50 2381 82.0 32449 8663 1.638
Vihtavuori 20N29 107.0 89.4 5.79 2319 76.6 30647 8533 1.688
PB Clermont PCL 513/520/9520 107.0 84.8 5.50 2317 78.6 30599 8354 1.691
Accurate 8700 107.0 85.0 5.51 2285 78.3 30062 8237 1.701
NC A3502 ,test only 107.0 81.2 5.26 2131 54.2 29392 6224 1.736
TLP A 502(RH) ,test only 107.0 81.2 5.26 2110 58.8 27405 6648 1.783
Vihtavuori N32C Tin Star 101.0 39.1 2.53 2086 100.0 65000 3610 1.369 !DANGEROUS LOAD-DO NOT USE!
IMR TrailBoss 107.0 28.0 1.81 1752 100.0 39295 2710 1.696
ADI AS 25 BP 107.0 28.0 1.81 1752 100.0 39295 2710 1.696
V1734 7-multiperf ,test only 107.0 81.2 5.26 1515 26.7 15483 3046 2.315
 
Yeah, no worries, what do you think?

I honestly think it would be a good one. Especially for our M70's. Should require any real work to be done to the gun other than a rebarrel, rechamber, true it up and it should be good go? I think Brian is making some calls right now. I would be a happy camper shooting 250's at 2850-2900.. I think the recoil might be manageable enough to not knock the tar out of me and it should be accurate...
 
If you plan on rechambering you better make sure the reamer has the same or larger neck diameter. If it doesn't you'll have a stepped neck if the barrel isn't set back. The Ruger case is 2.58" and the .338 Win. is 2.50". So if the neck of the reamer is under the factory size it will step down .080" early. The safest bet is to set it back 2-3 turns so it will clean the whole chamber up.

The .375 Ruger, 8mm Mag, and .300 Weatherby are all about equal case capacity. The difference in velocity can be a certain barrel as much as it is case capacity difference. My .338 Baer's (a blown out 8mm case) does 2900-2950 with 250's.
 
Scotty now this is just silly me talking here, but I would toss that boss in the garbage and get you a real barrel or maybe a smith could make something to screw onto it that is thin and matches the color and contour of the barrel. I just don't care for them. I think you guys got a great idea brewing though on the chambering. It should be a dandy. This coming from mister small caliber himself! :p
David
 
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