My favorite cartridge is the .45 Auto Rim and my S&W625 5"1989 is my favorite handgun i own.One of my best loads is a RCBS .45-255-KT. with ww alloy goes 260 grains and with 6.5 grs. AA #5 is super accurate.It also loves Lee's 200 gr. micro grove swc. and4.5 grs. red dot or 6.0 to 8.0 grs. AA#5 plus many others to. .45 Auto Rim is a great cartridge with light or heavy boolits.