So a few years back I bought a LEE 8mm KAR. This thing drops at a whopping 234gr, 0.329", and has a gas check shank that's 0.314". It's hasn't seen much use but I'm hoping to change that.
The weight is fine, the diameter can be sized down, but I have no idea what to do about the gas check issue. I believe normal 8mm gas checks use a shank that's 0.301"-0.304". Suggestions?