RE: .38sp vs 9mm vs .45ACP
It would not be a carry gun but someone mentioned a 4 inch Ruger gp 100. The six inch GP 100 357 mag is uneartly accurate. Just off sand bags I have shot 3 inch groups with open sights on that gun at 100 yards. I got about the same groups with the 610 S&W whichs shoots 40 Smith and 10 MM with moon clips I could shoot plastic pop bottles filled with warer at 100 yards every time. Funny thing was it was just as accurate with the 40's that had a much longer jump to the forcing cone.