I'm sure this kind of thing has been asked before, but I couldn't find anything specific to my problem. I'm having trouble with some powder coated Lee 312-160 bullets. I have a bunch of old Ideal 30 cal gas checks that I've picked up for next to nothing as gun shows over the years, and a box of Hornady checks.
The bullets shanks run about .288". The checks run about .285". The old Ideal checks are even smaller. I made a punch to open them up, and that works for the Hornady checks. They slip on fine and once sized they stay on tight. The old Ideal checks just fall off. I think I'll just chuck them.
The Hornady checks work, but it's a time-consuming pain to open them up. I've been thinking about ordering some new checks. Does anyone have any other brands of 30 cal checks that measure slightly larger?