I've had 2 S&W 625's in .45 ACP/.45 Auto Rim. My current is a 625 Mountain Gun in .45 ACP.
I have a fair amount of 45 Auto Rim brass and have worked up some pretty stout loads with no ill effects or signs of pressure.
The question is, is it safe to load .45 ACP brass up to the same pressure? I've always understood (and believed) the 45 Auto Rim and .45 ACP are the same internally and the web of the cartridge should be just as strong.
I Googled and looked over a few websites lastnight and saw some pretty impressive loads using 255 Grain boolits out of 1911's, upwards of 1050 FPS according to Paco Kelly.
Thanks for any info and experiences.
Murphy