I went to a local range and shot: Friday 200 rounds of .45 through G21 & G30 100 rounds of .357 sig through G31 300 rounds total Saturday 300 rounds of .45 through G21 and G30 150 rounds of .357 through HK USP Compact & G31 450 rounds total My left hand is sore & achy. It is actually on my middle and ring finger (achy 2nd joints & between 2nd joint and the knuckle which cover my right hand 2nd knuckle). Was I doing something wrong? Was I grabbing with left/weak hand too much? It didn't happen before (I've shot 600 rounds of .45 a day through G30 in the past).