Hi All,
Just purchased a 303 British I intend shooting some cast bullets and wondered which size gas check I should purchase, the 30 cal or the 32 cal?

Thanks

Annealed 32 caliber.
Simple to do just put checks in skillet and heat until the checks start turning colors.

Jim

I use oedinary 30 cal Hornady gas checks; even through a .314 sizer these still crimp on well!