I’ve experienced cold welding on ammunition in the past. I figured out that tumbling brass clean with stainless pins was causing it on ammunition that I loaded that would sit for several years before firing. That being said, I am getting ready to load 100 rounds of 270 for my brother and nephew. The only cases I had were pretty dingy and had a couple green spots, so I gave them a bath in the pins. The two of them are hunters. And don’t shoot very often. Probably ten rounds a year between checking zero, and hunting. I know I could seat them a little long, and seat deeper down the road to break the weld. But I just want to hand this stuff off and be done with it. So what can I put inside the necks to prevent the weld, but not contaminate the powder in the case?
