Oldman-Winter
03-27-2006, 08:21 PM
How much bigger than groove diameter should a cast bullet be? For instance, if
the groove diameter is .310 inch, should you size your bullets to .310 inch, or a bit
bigger?
Also, for the 7.62x39 with a .310 inch groove, will .308 cast bullets upset enough
to fill the .310 groove?
the groove diameter is .310 inch, should you size your bullets to .310 inch, or a bit
bigger?
Also, for the 7.62x39 with a .310 inch groove, will .308 cast bullets upset enough
to fill the .310 groove?