300 WSM 200 gr AB

[Plagioclase]

Anyone have any pet loads they'd like to share? Been looking at recipes and identifying which powders will fit under the 200 gr AB. I'd love to load H4831 but 68 grains Nosler recommends requires much crunching to get a bullet seated. Other ideas?

Thanks.

 

[SJB358]

I really, really tried to make this bullet work in my old 300WSM and it was just never consistently accurate. Speeds were excellent with RL19 but I couldn't get the accuracy on a recurring basis. I think RL19, H4831SC, RL17, and maybe H4350 would all be in the right spot. Ramshot Hunter looks pretty good as well.

Cartridge : .300 WSM (CIP)
Bullet : .308, 200, Nosler AccuBond 54618
Useable Case Capaci: 68.015 grain H2O = 4.416 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: 63000 psi, or 434 MPa
or a maximum loading ratio or filling of 110 %
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 !

7 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 104.5 68.4 4.43 2927 100.0 63000 11484 1.194 ! Near Maximum !
Vihtavuori N560 106.2 68.1 4.41 2918 98.4 63000 11784 1.191 ! Near Maximum !
PB Clermont PCL 517 108.9 72.9 4.72 2914 99.1 63000 11561 1.182 ! Near Maximum !
SNPE Vectan SP 12 108.7 72.8 4.71 2914 99.1 63000 11540 1.182 ! Near Maximum !
Accurate MAGPRO 106.5 71.0 4.60 2910 97.3 63000 11856 1.197 ! Near Maximum !
IMR 7828 SSC 104.7 67.4 4.37 2900 98.7 63000 11367 1.184 ! Near Maximum !
Bofors RP5/NP ~approximation 106.5 67.5 4.37 2895 99.5 63000 11321 1.198 ! Near Maximum !
Alliant Reloder-22 106.5 67.5 4.37 2895 99.5 63000 11321 1.198 ! Near Maximum !
Raufoss RA15 106.5 67.5 4.37 2895 99.5 63000 11321 1.198 ! Near Maximum !
ReloadSwiss RS 70 97.6 65.2 4.23 2894 100.0 63000 10639 1.189 ! Near Maximum !
Winchester WXR 109.3 67.8 4.39 2894 99.4 63000 11338 1.198 ! Near Maximum !
Bofors RP15 109.3 67.8 4.39 2894 99.4 63000 11338 1.198 ! Near Maximum !
ADI AR 2213 105.6 66.9 4.34 2885 98.6 63000 11271 1.184 ! Near Maximum !
ReloadSwiss RS 60 94.7 62.3 4.04 2884 100.0 63000 10150 1.192 ! Near Maximum !
IMR 7828 110.0 67.0 4.34 2881 98.6 61649 11321 1.195 ! Near Maximum !
Ramshot Magnum 106.1 72.4 4.69 2874 99.8 63000 10793 1.189 ! Near Maximum !
ADI AP 2214 109.4 71.2 4.61 2874 98.8 63000 11108 1.182 ! Near Maximum !
Alliant Reloder-17 93.7 61.6 3.99 2861 100.0 63000 10077 1.200 ! Near Maximum !
Elcho 17 93.7 61.6 3.99 2861 100.0 63000 10077 1.200 ! Near Maximum !
Rottweil R905 107.6 66.9 4.34 2858 98.3 63000 11020 1.200 ! Near Maximum !
Alliant Reloder-25 110.0 68.6 4.44 2854 100.0 57698 10937 1.232 ! Near Maximum !
Bofors RP5 NT ~approximation 109.2 69.8 4.52 2849 96.8 63000 11125 1.189 ! Near Maximum !
ADI AR 2209 102.4 63.9 4.14 2849 99.4 63000 10696 1.192 ! Near Maximum !
Alliant Reloder-19 103.0 64.6 4.19 2848 99.4 63000 10767 1.199 ! Near Maximum !
PB Clermont PCL 511 95.3 63.7 4.13 2843 100.0 63000 10393 1.206 ! Near Maximum !
Ramshot Hunter 98.5 63.8 4.13 2842 100.0 63000 10379 1.206 ! Near Maximum !
Bofors RP14 ~approximation 103.8 65.1 4.22 2841 99.4 63000 10690 1.200 ! Near Maximum !
Hodgdon H414 93.0 61.7 4.00 2838 99.9 63000 10408 1.209 ! Near Maximum !
Winchester 760 93.0 61.7 4.00 2838 99.9 63000 10408 1.209 ! Near Maximum !
ReloadSwiss RS 62 95.8 62.9 4.08 2833 100.0 63000 10002 1.220 ! Near Maximum !
Somchem S365 100.3 62.5 4.05 2827 100.0 63000 9612 1.216 ! Near Maximum !
Raufoss RA4 100.8 63.2 4.10 2823 99.2 63000 10476 1.202 ! Near Maximum !
Bofors RP4 ~approximation 100.8 63.2 4.10 2823 99.2 63000 10476 1.202 ! Near Maximum !
Norma 204 97.7 63.2 4.10 2823 99.2 63000 10476 1.202 ! Near Maximum !
Hodgdon H4831 108.3 66.0 4.28 2822 98.0 63000 10618 1.197 ! Near Maximum !
Hodgdon H4831 SC 104.1 66.0 4.28 2822 98.0 63000 10618 1.197 ! Near Maximum !
Vihtavuori N550 95.2 61.0 3.95 2819 100.0 63000 10044 1.218 ! Near Maximum !
Norma URP 98.0 60.8 3.94 2818 100.0 63000 9907 1.214 ! Near Maximum !
Bofors RP19 ~approximation 98.0 60.8 3.94 2817 100.0 63000 9905 1.214 ! Near Maximum !
Accurate 4350 97.2 60.9 3.95 2813 100.0 63000 9859 1.231 ! Near Maximum !
Somchem S385 103.2 65.4 4.24 2812 99.8 63000 10264 1.220 ! Near Maximum !
Winchester Supreme 780 101.5 67.1 4.35 2801 99.3 63000 10222 1.205 ! Near Maximum !
IMR 4831 102.8 61.7 4.00 2800 100.0 63000 9687 1.223 ! Near Maximum !
Accurate 3100 106.5 66.7 4.33 2800 100.0 63000 9944 1.232 ! Near Maximum !
Bofors RP4 NT ~approximation 98.4 62.7 4.06 2799 99.9 63000 10069 1.215 ! Near Maximum !
Vihtavuori N165 108.6 67.3 4.36 2796 99.6 63000 10024 1.210 ! Near Maximum !
Rottweil R904 101.6 62.8 4.07 2793 98.6 63000 10215 1.205 ! Near Maximum !
Lovex S070 97.7 60.6 3.92 2783 99.9 63000 9880 1.224 ! Near Maximum !
Bofors RP30 110.0 69.0 4.47 2780 97.7 52596 11454 1.294
Norma MRP 2 110.0 69.0 4.47 2780 97.7 52596 11454 1.294
Vihtavuori N570 110.0 72.7 4.71 2780 92.1 51081 12248 1.301
Vihtavuori N160 108.5 65.2 4.23 2777 98.5 63000 10030 1.208 ! Near Maximum !
Hodgdon H380 90.5 58.0 3.76 2775 100.0 63000 9556 1.224 ! Near Maximum !
Hodgdon Hybrid 100V 100.6 61.0 3.95 2774 100.0 63000 9114 1.216 ! Near Maximum !

 

[big rifle man]

I tried 200 grainers in my Kimber Montana and ran into the same accuracy problems as scotty. I have had great luck with the 180's which gives me the impression that the 200's might be a bit long for the twist. I have read in a number of articles that it is best to stick with 180's or less for best accuracy. The 200's also cut down on powder space as they seat fairly deep in the case.

 

[MrBruce]

I tried 200 grainers in my Kimber Montana and ran into the same accuracy problems as scotty. I have had great luck with the 180's which gives me the impression that the 200's might be a bit long for the twist. I have read in a number of articles that it is best to stick with 180's or less for best accuracy. The 200's also cut down on powder space as they seat fairly deep in the case.

Ditto here with the 200 gr AB and a Tikka T3. Maxed out with 62.0 gr of H4350 and 2700 fps. Best groups were 1.24 @ 100 yards. The same rifle groups 180 ABs 0.63 at 100 yards @ 2950 fps.

 

[lefty315]

I'm running mine right at 2800 fps with IMR 4350 in my Kimber Classic and accuracy is amazing. I've shot several 200 yard groups barely over an inch. I'm sure RL 19 would give some more velocity but I'm pretty happy with what it's doing.

 

[SJB358]

Yeah, I wouldn't complain a bit with that sorta accuracy either. If I could have gotten the AB's to work, I would have probably kept the rifle.

 

[Plagioclase]

Sorry for the delay but have been out of town since last week. I need to sleep in my own bed..........

sj - thanks for running QL.

I'm inclined to stop trying to make them shoot and stick with the Partitions.

Thanks fellas

 

[SJB358]

I had some real good results with the 200 PT's and should've stuck with them myself. Live and learn.

 

[DrMike]

Interesting post. I gave up trying to get either of the 300 WSMs I've owned to shoot the 200 grain AB. Either will shoot 200 grain Sierra GKs or 200 grain Partitions into bug holes. That'll do for this cowboy.