Thread: .357 Sig
View Single Post
Old 01-27-2010, 03:05   #4
sig357fan
Senior Member
 
Join Date: Apr 2008
Posts: 733
G-31,

chamfer means to sightly bevel the inside of the case mouth so the bullet dosn't hang up on it when seating, you can also chamfer the outside of the case mouth which helps with feeding the round into the chamber.

case mouths get flared during charging when using a case activated powder measure like the Lee disc powder measure or a die spacificaly designed to flare the case. Case flaring helps with seating the bullet, pretty common when loading lead bullets.

sig357fan
sig357fan is offline   Reply With Quote