Ranch Dog wrote:Joe, I ran it again with the Accurate 5744...
45-70 Govt for the RG4570 at an OAL of 2.500". I think the RG is fully capable of 35.0 KPSI so that is what these loads are generated to. I generate loads with a case capacity of 86% to 105%, that has worked best all around for me. From my work with the pressure trace equipment and at the reloading bench, loads exceeding 105% have issues. The only powder affected by this caveat is IMR 3031 but you will see that I've included a 35.0 KPSI load with it for comparison. Finally, with RLD 7 there is always the question of; "are you talking about the new or old formula". The answer is; "I don't know", so use all the information below at your own risk.
430-grain lead bullet that is 1.035" long and sized to .458":
IMR 3031, 47.6-grains, 1698 FPS, 105% Case Capacity, 29.1 KPSI
IMR 3031, 50.3-grains, 1805 FPS, 111% Case Capacity, 35.0 KPSI
IMR 4198, 41.2-grains, 1730 FPS, 95% Case Capacity, 35.0 KPSI
RLD 7, 42.6-grains, 1733 FPS, 91% Case Capacity, 35.0 KPSI
Accurate 5744, 35.0-grains, 1692 FPS, 77% Case Capacity, 34.9 KPSI
535-grain lead bullet that is 1.285" long and sized to .458":
IMR 3031, 38.2-grains, 1428 FPS, 105% Case Capacity, 28.3 KPSI
IMR 3031, 40.8-grains, 1533 FPS, 112% Case Capacity, 35.0 KPSI
IMR 4198, 33.4-grains, 1461 FPS, 96% Case Capacity, 35.0 KPSI
RLD 7, 34.5-grains, 1465 FPS, 92% Case Capacity, 35.0 KPSI
Accurate 5744, 28.3-grains, 1424 FPS, 78% Case Capacity, 34.8 KPSI
The information has been calculated at 70°. When shooting your loads, consider the grain or velocity max. Do not exceed either.
Darn RD thanks again and wished I was able to cast my own before you sold out but looks like I won't be out of here as quickly as I wanted to so will still be not likely till next year.