Oldtrader3
Ammo Smith
- Nov 6, 2009
- 8,406
- 5
That should suit your needs and work just fie, good choice!
300 WSM Compressed Loads
- Thread starter bob_dobalina
- Start date
- Thread starter
- #22
bob_dobalina
Handloader
- Oct 6, 2009
- 343
- 50
How accurate is the software you guys are using? I have a pound of Reloder 17coming and would like to work up a load with 180 accubonds, CCI 250 primers. I can seat up to 2.9"- can anyone give advice on a starting point and where to work up to?
This should give you a decent starting point. My rifle took a few grains over this to get into 3000FPS, but I am not sure of your rifles chamber.
Cartridge : .300 WSM (CIP)
Bullet : .308, 180, Nosler AccuBond 54825
Useable Case Capaci: 70.087 grain H2O = 4.551 cm³
Cartridge O.A.L. L6: 2.860 inch = 72.64 mm
Barrel Length : 24.0 inch = 609.6 mm
Powder : Alliant Reloder-17
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 74 50.40 2468 2435 34514 8780 97.6 1.490
-18.0 76 51.66 2524 2546 36750 8988 98.3 1.454
-16.0 78 52.92 2580 2660 39124 9181 98.8 1.412
-14.0 80 54.18 2635 2775 41647 9359 99.3 1.372
-12.0 82 55.44 2689 2891 44327 9519 99.6 1.332
-10.0 84 56.70 2744 3009 47175 9663 99.9 1.295
-08.0 86 57.96 2797 3128 50204 9788 100.0 1.259
-06.0 87 59.22 2850 3247 53426 9896 100.0 1.224
-04.0 89 60.48 2903 3368 56859 9999 100.0 1.190 ! Near Maximum !
-02.0 91 61.74 2955 3490 60514 10100 100.0 1.158 ! Near Maximum !
+00.0 93 63.00 3006 3612 64409 10198 100.0 1.127 !DANGEROUS LOAD-DO NOT USE!
+02.0 95 64.26 3057 3735 68568 10293 100.0 1.097 !DANGEROUS LOAD-DO NOT USE!
+04.0 97 65.52 3108 3860 73005 10385 100.0 1.068 !DANGEROUS LOAD-DO NOT USE!
+06.0 99 66.78 3158 3986 77741 10474 100.0 1.041 !DANGEROUS LOAD-DO NOT USE!
+08.0 100 68.04 3208 4113 82822 10560 100.0 1.014 !DANGEROUS LOAD-DO NOT USE!
+10.0 102 69.30 3257 4241 88225 10642 100.0 0.988 !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 93 63.00 3096 3831 76547 9860 100.0 1.056 !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba 93 63.00 2869 3290 53123 10575 99.2 1.222
Cartridge : .300 WSM (CIP)
Bullet : .308, 180, Nosler AccuBond 54825
Useable Case Capaci: 70.087 grain H2O = 4.551 cm³
Cartridge O.A.L. L6: 2.860 inch = 72.64 mm
Barrel Length : 24.0 inch = 609.6 mm
Powder : Alliant Reloder-17
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 74 50.40 2468 2435 34514 8780 97.6 1.490
-18.0 76 51.66 2524 2546 36750 8988 98.3 1.454
-16.0 78 52.92 2580 2660 39124 9181 98.8 1.412
-14.0 80 54.18 2635 2775 41647 9359 99.3 1.372
-12.0 82 55.44 2689 2891 44327 9519 99.6 1.332
-10.0 84 56.70 2744 3009 47175 9663 99.9 1.295
-08.0 86 57.96 2797 3128 50204 9788 100.0 1.259
-06.0 87 59.22 2850 3247 53426 9896 100.0 1.224
-04.0 89 60.48 2903 3368 56859 9999 100.0 1.190 ! Near Maximum !
-02.0 91 61.74 2955 3490 60514 10100 100.0 1.158 ! Near Maximum !
+00.0 93 63.00 3006 3612 64409 10198 100.0 1.127 !DANGEROUS LOAD-DO NOT USE!
+02.0 95 64.26 3057 3735 68568 10293 100.0 1.097 !DANGEROUS LOAD-DO NOT USE!
+04.0 97 65.52 3108 3860 73005 10385 100.0 1.068 !DANGEROUS LOAD-DO NOT USE!
+06.0 99 66.78 3158 3986 77741 10474 100.0 1.041 !DANGEROUS LOAD-DO NOT USE!
+08.0 100 68.04 3208 4113 82822 10560 100.0 1.014 !DANGEROUS LOAD-DO NOT USE!
+10.0 102 69.30 3257 4241 88225 10642 100.0 0.988 !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 93 63.00 3096 3831 76547 9860 100.0 1.056 !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba 93 63.00 2869 3290 53123 10575 99.2 1.222
What version of QL are you running? Mine is data Dec 2012 and show different results than yours. Did you tweak something?
Code:
Cartridge : .300 WSM (CIP)
Bullet : .308, 180, Nosler AccuBond 54825
Cartridge O.A.L. L6: 2.860 inch or 72.64 mm
Barrel Length : 24.0 inch or 609.6 mm
Powder : Alliant Reloder-17
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 74 50.40 2407 2315 30593 8904 97.1 1.572
-18.0 76 51.66 2464 2427 32602 9127 97.9 1.531
-16.0 78 52.92 2521 2540 34742 9333 98.6 1.492
-14.0 80 54.18 2577 2655 37023 9521 99.1 1.453
-12.0 82 55.44 2633 2772 39453 9690 99.6 1.409
-10.0 84 56.70 2689 2890 42045 9839 99.8 1.368
-08.0 86 57.96 2744 3010 44810 9967 100.0 1.329
-06.0 87 59.22 2799 3130 47760 10076 100.0 1.291
-04.0 89 60.48 2852 3252 50911 10178 100.0 1.254
-02.0 91 61.74 2906 3374 54279 10278 100.0 1.218 ! Near Maximum !
+00.0 93 63.00 2958 3498 57881 10375 100.0 1.185 ! Near Maximum !
+02.0 95 64.26 3010 3622 61736 10469 100.0 1.152 ! Near Maximum !
+04.0 97 65.52 3062 3747 65863 10560 100.0 1.120 !DANGEROUS LOAD-DO NOT USE!
+06.0 99 66.78 3113 3874 70286 10648 100.0 1.090 !DANGEROUS LOAD-DO NOT USE!
+08.0 100 68.04 3164 4002 74996 10732 100.0 1.060 !DANGEROUS LOAD-DO NOT USE!
+10.0 102 69.30 3215 4131 80027 10814 100.0 1.032 !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 93 63.00 3060 3742 70353 9998 100.0 1.100 !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba 93 63.00 2802 3138 46662 10777 99.0 1.297
wildgene
Handloader
- Jul 4, 2011
- 1,597
- 0
...maybe this is why you guys don't like RL-17, I'm using Alliant's data for the .25 WSSM, .300 & .325 WSM, near max loads, no pressure signs/ very good accuracy/ velocity...
- Thread starter
- #27
bob_dobalina
Handloader
- Oct 6, 2009
- 343
- 50
Alliant lists a load with 66 grains so Steve's numbers must be right? What is everyone's personal experience? I don't have my distance to lands measurement handy, but am shooting a Sako A7 if that helps
DrMike
Ballistician
- Nov 8, 2006
- 36,959
- 5,171
SJB358":36numxfr said:
There were adjustments in burn rates listed as data was updated. Also, I note that the data steve4102 lists does not give useable case capacity. My measured case capacity on my rifle is considerably larger than what you list, Scotty, which allows for a higher charge without pressure signs. I suspect similar differentials exists between your data and Steve's. Note the difference in burn rates listed at the bottom of each set of data. While the changes appear minor, they are actually rather significant.
Steve's Data Set:
Scotty's Data Set:
The latest data set was released 20 December 2012.
Thank you Mike. Clears it up. I will spring for the update after the New Year I believe, but even still, it works pretty well for generic runs. Until you get a usable case capacity for the individual rifle, its a shotgun blast where the data will run. With the case capacity, it usually tightens up the data a little more.
DrMike
Ballistician
- Nov 8, 2006
- 36,959
- 5,171
SJB358":3pp8pn4m said:
There should be another update toward the end of the year. I continue looking on the Neconos website to see if they have listed anything for an update.
- Thread starter
- #32
bob_dobalina
Handloader
- Oct 6, 2009
- 343
- 50
I gotta say I'm more confused now than before. Alliant lists a load at 66; both quickloads say dangerous do not use. I'm not sure where to start and stop. Maybe I'll email Alliant
bob_dobalina":q8vjckko said:
You are missing one important part of Alliant's on-line data. That is they list only the Max load. They also instruct the handloader to reduce this published Max load by 10% to Start.
So you really do have a "Starting point" of about 60gr and a "Published" max of 66gr. The 66gr is not your max, it is Alliant's Max, you should work up from 60+gr to find your max.
DrMike
Ballistician
- Nov 8, 2006
- 36,959
- 5,171
Maximum published loads are pressure tested and verified for the system in which they are developed. That is why you always start low (usually 10%) and work up to a safe maximum in your fire system.
Oldtrader3
Ammo Smith
- Nov 6, 2009
- 8,406
- 5
Max. loads today are lawyerized for lawsuit avoidance and often do not represent the max load at all. You need to use a chronograph and watch carefully for pressure signs to find your maximum loads!
Nosler #4 for instance is much higher than #7 for listed max loads.
Nosler #4 for instance is much higher than #7 for listed max loads.
- Thread starter
- #37
bob_dobalina
Handloader
- Oct 6, 2009
- 343
- 50
Well now I have 2 pounds of powder without good load data (RL 17 and H4350) and I don't know if I have the experience you guys have to work up a good load... I don't have a chronograph. I have seen a lot of people post 64 grains of H4350 with 180 ABs but that seems to butt right up against the 65K SAAMI max PSI, and I don't feel too good about making loads off of data from (other) internet forums.
So, I planned on working up the following with H4350 60,61,62,63; does that seem reasonable?
Another question - the online Nosler 7 manual lists 64 gr Hybrid H100V as MAX load - Hogdon lists this as 58,900 PSI, well below max SAAMI. Is it a max load simply from case volume?
So, I planned on working up the following with H4350 60,61,62,63; does that seem reasonable?
Another question - the online Nosler 7 manual lists 64 gr Hybrid H100V as MAX load - Hogdon lists this as 58,900 PSI, well below max SAAMI. Is it a max load simply from case volume?
DrMike
Ballistician
- Nov 8, 2006
- 36,959
- 5,171
bob_dobalina":18xea95o said:
QL projection for 180 grain AB and RL17:
Code:
Cartridge : .300 WSM (CIP)
Bullet : .308, 180, Nosler AccuBond 54825
Useable Case Capaci: 70.084 grain H2O = 4.550 cm³
Cartridge O.A.L. L6: 2.860 inch = 72.64 mm
Barrel Length : 24.0 inch = 609.6 mm
Powder : Alliant Reloder-17
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 76 51.60 2462 2422 32519 9116 97.9 1.528
-18.0 78 52.89 2520 2538 34708 9327 98.6 1.490
-16.0 80 54.18 2578 2656 37043 9520 99.1 1.452
-14.0 82 55.47 2635 2776 39535 9692 99.6 1.408
-12.0 84 56.76 2692 2897 42196 9844 99.8 1.366
-10.0 86 58.05 2748 3019 45039 9974 100.0 1.326
-08.0 88 59.34 2804 3143 48079 10084 100.0 1.287
-06.0 89 60.63 2859 3267 51331 10188 100.0 1.249
-04.0 91 61.92 2914 3393 54812 10290 100.0 1.213 ! Near Maximum !
-02.0 93 63.21 2967 3519 58542 10388 100.0 1.179 ! Near Maximum !
+00.0 95 64.50 3021 3647 62542 10484 100.0 1.145 ! Near Maximum !
+02.0 97 65.79 3073 3775 66832 10577 100.0 1.113 !DANGEROUS LOAD-DO NOT USE!
+04.0 99 67.08 3126 3905 71432 10666 100.0 1.082 !DANGEROUS LOAD-DO NOT USE!
+06.0 101 68.37 3178 4037 76337 10752 100.0 1.052 !DANGEROUS LOAD-DO NOT USE!
+08.0 103 69.66 3230 4169 81590 10834 100.0 1.024 !DANGEROUS LOAD-DO NOT USE!
+10.0 105 70.95 3281 4304 87222 10913 100.0 0.996 !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 95 64.50 3118 3886 75927 10114 100.0 1.065 !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba 95 64.50 2870 3293 50306 10954 99.5 1.253The following suggests near maximum loads with the same bullet and alternate powders. You can see that H4350 will work, though it may not be the best powder. Only testing will verify whether it is what you want to use or not.
Code:
Cartridge : .300 WSM (CIP)
Bullet : .308, 180, Nosler AccuBond 54825
Useable Case Capaci: 70.084 grain H2O = 4.550 cm³
Cartridge O.A.L. L6: 2.860 inch = 72.64 mm
Barrel Length : 24.0 inch = 609.6 mm
Predicted Data for Indicated Charges of the Following Powders.
Matching Maximum Pressure: 62000 psi, or 427 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 !
10 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 105.8 71.3 4.62 3070 99.7 62000 11879 1.146 ! Near Maximum !
Vihtavuori N560 107.0 70.6 4.58 3040 97.2 60958 12024 1.153 ! Near Maximum !
IMR 7828 SSC 105.8 70.2 4.55 3034 97.7 62000 11653 1.137 ! Near Maximum !
Accurate MAGPRO 107.0 73.5 4.76 3018 95.7 60240 12019 1.164 ! Near Maximum !
ADI AR 2213 106.7 69.7 4.52 3018 97.6 62000 11537 1.138 ! Near Maximum !
Alliant Reloder-17 94.9 64.3 4.17 3014 100.0 62000 10472 1.150 ! Near Maximum !
Elcho 17 94.9 64.3 4.17 3014 100.0 62000 10472 1.150 ! Near Maximum !
Alliant Reloder-22 107.0 69.9 4.53 3012 98.7 60383 11596 1.163 ! Near Maximum !
Raufoss RA15 107.0 69.9 4.53 3012 98.7 60383 11596 1.163 ! Near Maximum !
Bofors RP5/NP ~approximation 107.0 69.9 4.53 3012 98.7 60383 11596 1.163 ! Near Maximum !
Ramshot Magnum 107.0 75.3 4.88 3002 99.2 61512 11107 1.146 ! Near Maximum !
ADI AR 2209 103.5 66.5 4.31 2987 98.6 62000 10999 1.144 ! Near Maximum !
Alliant Reloder-19 104.2 67.3 4.36 2986 98.7 62000 11074 1.151 ! Near Maximum !
PB Clermont PCL 511 96.5 66.4 4.30 2986 99.9 62000 10780 1.157 ! Near Maximum !
Ramshot Hunter 99.7 66.5 4.31 2984 99.9 62000 10765 1.157 ! Near Maximum !
Hodgdon H414 94.1 64.3 4.17 2980 99.6 62000 10781 1.159 ! Near Maximum !
Winchester 760 94.1 64.3 4.17 2980 99.6 62000 10781 1.159 ! Near Maximum !
Somchem S365 101.6 65.3 4.23 2979 100.0 62000 9992 1.164 ! Near Maximum !
Bofors RP14 ~approximation 104.9 67.8 4.39 2979 98.7 62000 10992 1.152 ! Near Maximum !
Norma URP 99.2 63.4 4.11 2963 100.0 62000 10297 1.165 ! Near Maximum !
Vihtavuori N550 96.3 63.6 4.12 2963 100.0 62000 10431 1.169 ! Near Maximum !
Bofors RP19 ~approximation 99.2 63.4 4.11 2963 100.0 62000 10294 1.165 ! Near Maximum !
Accurate 4350 98.4 63.6 4.12 2960 100.0 62000 10264 1.181 ! Near Maximum !
Norma 204 98.7 65.9 4.27 2960 98.5 62000 10769 1.153 ! Near Maximum !
Raufoss RA4 101.9 65.9 4.27 2960 98.5 62000 10769 1.153 ! Near Maximum !
Bofors RP4 ~approximation 101.9 65.9 4.27 2960 98.5 62000 10769 1.153 ! Near Maximum !
Hodgdon H4831 SC 105.3 68.7 4.45 2955 96.9 62000 10855 1.149 ! Near Maximum !
Somchem S385 104.4 68.2 4.42 2950 99.3 62000 10593 1.171 ! Near Maximum !
IMR 4831 104.1 64.4 4.17 2945 100.0 62000 10072 1.173 ! Near Maximum !
SNPE Vectan SP 12 107.0 73.8 4.78 2944 97.1 55485 11592 1.196 ! Near Maximum !
PB Clermont PCL 517 107.0 73.8 4.78 2939 96.9 55163 11592 1.199 ! Near Maximum !
Rottweil R905 107.0 68.6 4.45 2939 96.6 58238 11127 1.185 ! Near Maximum !
Bofors RP4 NT ~approximation 99.5 65.3 4.23 2938 99.5 62000 10402 1.166 ! Near Maximum !
Winchester Supreme 780 102.6 69.9 4.53 2936 98.5 62000 10495 1.157 ! Near Maximum !
Rottweil R904 102.7 65.4 4.24 2927 97.7 62000 10472 1.157 ! Near Maximum !
Winchester WXR 107.0 68.4 4.43 2927 97.7 54994 11367 1.213 ! Near Maximum !
Bofors RP15 107.0 68.4 4.43 2927 97.7 54994 11367 1.213 ! Near Maximum !
Alliant Reloder-15 90.2 58.3 3.77 2922 100.0 62000 9781 1.171 ! Near Maximum !
Bofors RP11 ~approximation 90.2 58.3 3.77 2922 100.0 62000 9781 1.171 ! Near Maximum !
Raufoss RA11 90.2 58.3 3.77 2922 100.0 62000 9781 1.171 ! Near Maximum !
Hodgdon Hybrid 100V 101.8 63.6 4.12 2922 100.0 62000 9476 1.164 ! Near Maximum !
Lovex S070 98.7 63.1 4.09 2922 99.6 62000 10225 1.175 ! Near Maximum !
Hodgdon H4350 101.4 64.1 4.15 2921 99.2 62000 10191 1.160 ! Near Maximum !
IMR 4350 99.5 64.0 4.14 2920 99.3 62000 10171 1.160 ! Near Maximum !
Accurate 3100 107.0 69.1 4.48 2919 99.8 60401 10288 1.197 ! Near Maximum !
Norma 203B 90.6 58.5 3.79 2918 100.0 62000 9703 1.173 ! Near Maximum !
Hodgdon H380 91.5 60.4 3.91 2918 100.0 62000 9934 1.175 ! Near Maximum !
Norma 203 old 91.9 60.0 3.89 2907 100.0 62000 9553 1.186 ! Near Maximum !
Bofors RP3 91.9 60.0 3.89 2907 100.0 62000 9553 1.186 ! Near Maximum !
Rottweil R903 93.9 60.0 3.89 2902 100.0 62000 9472 1.186 ! Near Maximum !
Elcho TR140 - preliminary data 91.1 60.8 3.94 2902 100.0 62000 9672 1.171 ! Near Maximum !
Bofors RP7 96.4 61.1 3.96 2900 99.3 62000 10044 1.170 ! Near Maximum !
Rottweil R907 96.4 61.1 3.96 2900 99.3 62000 10044 1.170 ! Near Maximum !
IMR 4007 SSC 93.3 61.2 3.96 2899 99.3 62000 10037 1.170 ! Near Maximum !
Lovex S065 97.5 61.6 3.99 2899 99.9 62000 9845 1.176 ! Near Maximum !
Somchem S355 94.1 59.5 3.85 2898 100.0 62000 9487 1.180 ! Near Maximum !
Somchem S361 101.6 69.9 4.53 2893 96.9 62000 10248 1.168 ! Near Maximum !
IMR 7828 107.0 67.2 4.35 2887 95.9 52894 11212 1.223
ADI AP 2214 107.0 71.8 4.65 2886 96.2 54620 11063 1.204 ! Near Maximum !
Hodgdon H4831 107.0 67.2 4.35 2883 96.0 57154 10632 1.192 ! Near Maximum !
Bofors RP5 NT ~approximation 107.0 70.5 4.57 2878 94.0 55711 10965 1.200 ! Near Maximum !
Alliant Reloder-25 107.0 68.8 4.46 2867 99.5 49410 11140 1.262
Accurate 4064 91.4 57.7 3.74 2862 100.0 62000 8949 1.208 ! Near Maximum !
Vihtavuori N165 107.0 68.4 4.43 2855 98.4 56553 10148 1.209 ! Near Maximum !
Rottweil R902 90.2 56.2 3.64 2854 100.0 62000 8963 1.185 ! Near Maximum !
Accurate 2700 93.4 63.0 4.08 2850 99.1 62000 9471 1.175 ! Near Maximum !
Vihtavuori N160 107.0 66.3 4.29 2839 96.7 57248 10068 1.202 ! Near Maximum !Nosler lists H110V as a maximum load because it approximates maximum pressure. Pressure spikes pretty dramatically as charge is increased with this powder.
Code:
Cartridge : .300 WSM (CIP)
Bullet : .308, 180, Nosler AccuBond 54825
Useable Case Capaci: 70.084 grain H2O = 4.550 cm³
Cartridge O.A.L. L6: 2.860 inch = 72.64 mm
Barrel Length : 24.0 inch = 609.6 mm
Powder : Hodgdon Hybrid 100V
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 82 50.96 2390 2283 32181 8267 97.7 1.550
-18.0 84 52.23 2445 2390 34378 8454 98.4 1.511
-16.0 86 53.51 2501 2499 36726 8627 99.0 1.472
-14.0 88 54.78 2555 2610 39238 8782 99.4 1.429
-12.0 90 56.06 2610 2722 41926 8921 99.7 1.386
-10.0 92 57.33 2664 2835 44801 9041 99.9 1.345
-08.0 94 58.60 2717 2950 47852 9143 100.0 1.306
-06.0 96 59.88 2769 3066 51090 9231 100.0 1.268
-04.0 98 61.15 2822 3182 54544 9317 100.0 1.232 ! Near Maximum !
-02.0 100 62.43 2873 3299 58230 9399 100.0 1.197 ! Near Maximum !
+00.0 102 63.70 2924 3417 62168 9479 100.0 1.163 ! Near Maximum !
+02.0 104 64.97 2975 3537 66378 9556 100.0 1.131 !DANGEROUS LOAD-DO NOT USE!
+04.0 106 66.25 3025 3657 70883 9629 100.0 1.100 !DANGEROUS LOAD-DO NOT USE!
+06.0 108 67.52 3075 3779 75707 9700 100.0 1.069 !DANGEROUS LOAD-DO NOT USE!
+08.0 110 68.80 3124 3902 80881 9766 100.0 1.041 !DANGEROUS LOAD-DO NOT USE!
+10.0 112 70.07 3174 4026 86437 9829 100.0 1.013 !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 63.70 3014 3630 74552 9128 100.0 1.085 !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba 102 63.70 2785 3101 49975 9903 99.4 1.269- Thread starter
- #39
bob_dobalina
Handloader
- Oct 6, 2009
- 343
- 50
I thought max PSI for the 300 WSM was 65K. How big of a difference would 2.9" seating depth make? And what primer is QuickLoad assuming? I am using CCI 250. Thanks.
DrMike
Ballistician
- Nov 8, 2006
- 36,959
- 5,171
QL makes no assumption on primer. My recommendation is to use the coolest primer to still give ignition. I do use a lot of CCI250 primers in my WSMs, though I tend to use LR primers for the most part except in extremely cold conditions or with ball powders. Seating depth can alter pressure, but not as much as you might expect. Moreover, note the velocities relative to the pressures and you'll see that as you near maximum, velocity does not increase as much as you might anticipate.
