I just picked up a CVA compact in 350 legend and I want to shoot cast bullets out of it. But I didin't have any pure lead bullets that size to slug the bore. I found that 3/8 oz bullet shaped worm weights would work. They measured .365, used some teflon based lube and a 1/4" aluminum rod to drive it through the barrel. It measured between .355.5 and .356.