bdgotoh, I tried 3.8 of 231 tonight at the range at 50 feet using a M14 off bags and the groups are good, better than I've been getting at lower grain loads. I'll try the Bullseye recipe Saturday with a ransom rest. I'd like to find a load that was good to 75 feet. I didn't size the WCs, but I did measure them and found a thou at the most variance on a single slug. Mine all measure .357, .3575 and .358 on a single slug if you explore. Is that significant enough for the size die use? Next thing is a model 52.