ExpatGator
Member
Hey folks. Hope someone out there can help me on this one. I just, last night, completed my first small batch of reloads. As mentioned in the subject line I was loading 9mm (115 gr. fmj), using 4.5 gr. of SR 4756. This is the minimal load from the Lyman manual. This recipe failed to fully cycle the action on my wife's Sig P239. I obviously need to heat this up a bit. Any suggestions or experiences that could help me determine, with a minimum of trial and error on my part, how much to increase the load? All suggestions are appreciated.