I bought some more stuff for reloading, 200rnds of .308 remington corlok, spitzerstyle copper jacket leadtip flat base. Completly took my groups down from the copper plated flatnose flat base that I first reloaded, I'm doing 3.6" groups out at 500yrds so I can finally move out to 600yrds. Does weighing the cases and weeding out the non average actually have a BIG performance boost, or is it one of those things that only really matters if you tune the rest of the case.