Yep. The SAAMI maximum pressure for the .30-06 is only 60,000 PSI because of old guns, but even with SAAMI-pressure H4831SC I've gotten 2675 with 200's in some 22" barrels. There's no real reason not to push the SAAMI limit a little.
In the only .30-06 I own right now, a NULA with a 24" barrel, 59.0 grains of H4831SC gets around 2690 with the 200 Partition. Haven't tried the 200 AB with the same load.
John,
That's the load I've used in a old Mark X with great results and speeds similar to what you noted. I may have been lead to that combo from your writings.
For giggles I ran that load through QL just to see where it stood on the analytical side and sure enough it is exactly as you stated...slightly higher than SAAMI but still below 65 ksi with a velocity near to your numbers; nothing earth-shattering here other than this is one case where it seems to do OK and I have some empirical data for compaison. I'm an empirical guy but like to mess around with QL as a curiosity if anything.
Thanks for your input and feedback on the 200 partition.
Cartridge : .30-06 Spring. (SAAMI)
Bullet : .308, 200, Nosler PART SP 35626
Useable Case Capaci: 57.954 grain H2O = 3.763 cm³
Cartridge O.A.L. L6: 3.300 inch = 83.82 mm
Barrel Length : 24.0 inch = 609.6 mm
Powder : Hodgdon H4831 SC
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 87 47.20 2125 2004 31197 7357 85.1 1.619
-18.0 90 48.38 2180 2111 33425 7614 86.5 1.573
-16.0 92 49.56 2237 2222 35823 7866 87.9 1.528
-14.0 94 50.74 2293 2336 38409 8112 89.3 1.481
-12.0 96 51.92 2351 2454 41202 8350 90.5 1.433
-10.0 98 53.10 2408 2575 44220 8579 91.7 1.387
-08.0 101 54.28 2466 2701 47487 8799 92.9 1.342
-06.0 103 55.46 2524 2830 51026 9007 93.9 1.299 ! Near Maximum !
-04.0 105 56.64 2583 2962 54874 9203 94.9 1.258 ! Near Maximum !
-02.0 107 57.82 2641 3099 59058 9386 95.8 1.218 ! Near Maximum !
+00.0 109 59.00 2701 3239 63620 9555 96.6 1.179 !DANGEROUS LOAD-DO NOT USE!
+02.0 111 60.18 2760 3382 68605 9708 97.4 1.141 !DANGEROUS LOAD-DO NOT USE!
+04.0 114 61.36 2819 3530 74067 9843 98.0 1.104 !DANGEROUS LOAD-DO NOT USE!
+06.0 116 62.54 2879 3681 80066 9961 98.6 1.069 !DANGEROUS LOAD-DO NOT USE!
+08.0 118 63.72 2939 3836 86681 10059 99.1 1.035 !DANGEROUS LOAD-DO NOT USE!
+10.0 120 64.90 2999 3995 93990 10136 99.5 1.001 !DANGEROUS LOAD-DO NOT USE!
