Well, 0.001” increase did nothing I could detect. I’m going to jump to 0.075 and be done with it.

I have one aluminum BCG. It gets used exclusively for the SAC for obvious reasons. To my surprise, it’s been trouble free for quite a few years. Not a lot of rounds on it (like 1K maybe) but it doesn’t even show wear yet. Only on a ridiculous gamer gun for sure.