This is surprising to read. I don't reload, but I have a pretty solid understanding of the various steps involved. I wouldn't have thought shooting at routine handgun ranges (5-25 yards) would be enough to see negative effects of common reloads unless it was done to truly piss-poor standards. I mean, you clean the brass, you ensure you have the right case length, you clean the primer pockets and seat the primers to a uniform depth, you weigh the proper charge and properly seat the bullets to uniform depth. Which step creates enough room for subpar performance, short of failing to measure or weigh correctly? These are all fairly black-and-white processes.