For headspacing you want to hold the belt less than .002. The standard for the case face to the back of the belt is .220. So a clearnce of .002 is the maximum, or .220 +.002/-.000. Case life is shortened if you don't follow this rule.
Once you have fired your amunition either neck size only or full length size to where you only bump the shoulder back a maximum of .002 for best accuracy. In effect once you have the belt headspaced, from that point on you treat it just like any other case.
Bookmarks