My knowledge about semiauto pistols is on low side. However, I am posting this in hope that more knowledgeable folks will correct me if I omitted something.
Here is the website with info about 45-08 round: http://www.armco-guns.com/what's%20new%20at%20armco.htm , scroll down to first half. As a matter of fact, I am aware of 45 Super, 451 Detonics and 45 Rolland, so 45-08 looks similar. One of the loads listed is 200 gr at 1350 fps. If suitable powder is available, that energy level should be the same as for 250 gr at 1200 fps, or 265 at 1165 fps; assuming that pistol could take this loads. In Guns & Ammo, 2000 ANNUAL HANDGUNS, there is a load for 45 AR from S&W M25-6.5”; Lyman 454424, 255 SWC (I think that 265 gr is the real weight), with 14.5 gr of 2400 going 1137 fps. I have no such bullet to verify its protruding length, but similar one from SAECO has .370, so OAL of the loaded cartridge should be within OAL spec for 45 ACP. Appropriate LBT bullet or jacketed FP (better than HP) would be also a good choice. There is no information what is the pressure, but considering that thickness of the cylinder wall on this revolver is about .065” v/s .110” on 1911 barrel wall, barrel itself is more than enough to take such pressure in strong case like 45-08.
I am aware that this kind of load must be hard on 1911, however, bit more conservative approach and on sturdier platform, could be the answer. The pistols I have on my mind are 5” 4-digit S&W; 1006 and 4506. As far as I know, 1006 is a strong pistol, designed from the ground up to handle hot 10 mm cartridge. Load such 200 gr at 1150 fps looks like normal for it. Its 45 sibling, 4506 should be the same strength. If 1006 could lunch 200 gr at 1150 fps, equivalent energy level from 4506, with 250 gr bullet will be 1028 fps; assuming that strong case like 45-08 and suitable powder are used. A well designed LBT 265 gr cast bullet should reach this velocity, and probably more, without the problem.
So, if I have it right, 265 LBT at about 1000-1050 fps should be serious hunting or backup load in relatively compact firearm when compared with 45 LC revolvers, even with 4-5/8 barrel. I would prefer it any time over any 200 gr at 1150 fps.
Thanks, Onty.
Here is the website with info about 45-08 round: http://www.armco-guns.com/what's%20new%20at%20armco.htm , scroll down to first half. As a matter of fact, I am aware of 45 Super, 451 Detonics and 45 Rolland, so 45-08 looks similar. One of the loads listed is 200 gr at 1350 fps. If suitable powder is available, that energy level should be the same as for 250 gr at 1200 fps, or 265 at 1165 fps; assuming that pistol could take this loads. In Guns & Ammo, 2000 ANNUAL HANDGUNS, there is a load for 45 AR from S&W M25-6.5”; Lyman 454424, 255 SWC (I think that 265 gr is the real weight), with 14.5 gr of 2400 going 1137 fps. I have no such bullet to verify its protruding length, but similar one from SAECO has .370, so OAL of the loaded cartridge should be within OAL spec for 45 ACP. Appropriate LBT bullet or jacketed FP (better than HP) would be also a good choice. There is no information what is the pressure, but considering that thickness of the cylinder wall on this revolver is about .065” v/s .110” on 1911 barrel wall, barrel itself is more than enough to take such pressure in strong case like 45-08.
I am aware that this kind of load must be hard on 1911, however, bit more conservative approach and on sturdier platform, could be the answer. The pistols I have on my mind are 5” 4-digit S&W; 1006 and 4506. As far as I know, 1006 is a strong pistol, designed from the ground up to handle hot 10 mm cartridge. Load such 200 gr at 1150 fps looks like normal for it. Its 45 sibling, 4506 should be the same strength. If 1006 could lunch 200 gr at 1150 fps, equivalent energy level from 4506, with 250 gr bullet will be 1028 fps; assuming that strong case like 45-08 and suitable powder are used. A well designed LBT 265 gr cast bullet should reach this velocity, and probably more, without the problem.
So, if I have it right, 265 LBT at about 1000-1050 fps should be serious hunting or backup load in relatively compact firearm when compared with 45 LC revolvers, even with 4-5/8 barrel. I would prefer it any time over any 200 gr at 1150 fps.
Thanks, Onty.