I had a bunch of Sage [thought it was Sarge] checks that I used up on my 311413 cast bullets which stayed on nice and tight when lubrisized. But now I’m casting a 308329 and am using an old box of lyman checks that are a loose fit and can be pulled off some of the bullets. I’m using the same lubrisizer die setup. Is there a thicker 308/310 gc available or should I open up the gc part of my mould with a dremel bit to make a slightly bigger base? I have a mini mill so I would have a variable speed and square table. But would hate to ruin my mould. BTW, I’m building these bullets for my 300 blkout [supersonic].