I’m in on the GB, I am going for the plain base mould. I’m going to try using .35 cal plain base gas checks on them if I need to speed them up. Anyone else use PB gas checks and can offer some thoughts?
I use some pb gas checks on some .30’s, 458’s, and 501’s–they seem to help when pushing things. If I had a need for .358’s, I would probably try them too.