Re: S&W .45 colt load?
My load:
24 gr. H110, 250 gr. XTP 45200, crimp into cannelure, 1.6"
a) My 1970's Uberti Iver Johnson Cattleman 1873 Colt SAA 45 LC clone 4.75" barrel
Must calculate on Quickload at 6.5" barrel, because of cylinder length adds to effective barrel length.
Quickload thinks: 21,434 psi, 1226 fps
Chronograph measures: 1220 fps
b) My Winchester 1894 Ranger 45 Colt 16.25" barrel
Quickload thinks: 21,434 psi, 1532 fps
Chronograph measures 1536 fps
c) My Ruger Blackhawk 4 5/8" barrel
Quickload thinks: 21,434 psi, 1218 fps
Fired one shot, and the hammer cut into my hand, never shot it again in 5 years. I intend to deburr the hammer.