I'm trying to find where to purchase gas checks for my 500 grain (Lee mold) bullet for my .45-70. The only listing I can find is Midway... They do show what they term a "45 Cal." gas check, but they do not indicate the exact dia. I need it to be either .457 or .458, and 45 cal. could be anywhere from .452 on up... Does anyone know where I can find gas checks for my .45-70? Thanks. Dave
