Lonewolf74
Well-Known Member
- Joined
- May 12, 2016
- Messages
- 735
Accurately a cast will be right but you can get a good measurement on fired brass,,the neck will spring back a little after firing but the chambers neck should be real close to .001 over the fired brass maybe .0015
So measuring the fired necks and add .001 should put me pretty accurately where my neck clearance is?
Will neck spring back be about .001 in circumference or diameter? Meaning do I add .001 or .002 (if circumference spring back is .001) to the measured diameter of the neck?
Finally what sort of clearance would be on the edge of being excessive?