No matter what detail you are in the middle of, in reloading you have to watch every single one of them. I ordered 500 FB brass cases, pre-primed. I thought, great, that would save me a lot of work. Except, no. As I was loading the cratridges, I noticed after about 150 of them, that a primer was sticking halfway out. Halfway! I thought, now I have to go and inspect the rest of them, and I found about 10 for every hundred with the primers sticking out. But they weren't just sticking out, they were totally sliding back and forth in and out. Let's see, factory new brass, direct from the factory, primer holes too big, possible slamfire or blown up rifle. Not good. No matter what, you have to check EVERYTHING, even brass and products directly from the factory. I am in the process of sending them back, but hell, coupled with a problem with 200 other loaded FB brass, that's 700 inspected, and about 350 pulled and time spent. Not really wasted doing the pulling, because safety is the first concern, but this is one order that cost me three times what simply buying already loaded ammo would have cost. Not much fun either. So check EVERYTHING. Twice even. There were a couple of primers in there backwards too.