No issues shooting Hi-tek coated lead bullets through factory glock barrels.On primers, me and my brother decided after the last shortage we would stock up. We did as well with powder. We would load 1k and buy enough for 2k. With projectiles we didnt stock as much. We cast a good bit. But with glocks its frowned on to shoot cast. But I'm researching powder coating cast boolits. I know it's been done for a good while just not by me, until now. Now I can pass cast through all my stuff.