I am new to casting and will need advise about alot of things but my question for the present is this. I just cast 60 or so boolits for my Yugo M24 8mm mauser. I neck sized a shell casing, used lyman M die to flare case mouth, seated the boolit, and made up a dummy round. I did not crimp it. Chambered it in rifle and when I extracted it the boolit stuck in the chamber. I punched the bullet out carefully with cleaning rod and made up another round this time crimped. same result stuck another bullet in the barrel. At this point wisely decided to humbly join the ranks of CAST BOOLITS so I could get help. Boolits were cast with Lyman mold 323470 COL was 2.730 Are my boolits to big? Do I need to resize them smaller. I don't have a re sizer yet.