Re: 40 s&w reloading
Welcome to The Firearms Forum, bighoss!
I have had the same "problem" for many years with just about all straight walled brass, and it is not a problem at all. Basically it is normal, when you resize the brass the inside diameter is pushed down to, lets say .399 and then you shove a .401 bullet into that hole, something has got to give so the brass bulges a tiny bit. The chamber of the pistil is sufficient to handle that bulge. That is the best way I can describe it!!
NRA Endowment Member
Retired US Army
Retired Postal Worker