I tested a few 45 ACP loads today based on the Lee copy of HG68 and bullseye. 4.5, 4.8 and 5.0 grains all grouped well and cycled the action. Out of these three, I would pick the 4.5 grain load because this is for target and it had the least recoil and muzzle blast. Before I load up a bunch, should I have tried an even lower charge?