Thread: Case head separation imminent

Originally Posted by Moa Hunter

So you are suggesting that it is actually variation in shell holders that are giving us trouble with reloads just as much as anything else ?

Greetings @Moa Hunter and all,
No the shell holders are generally pretty good. The problem is with the tolerances between the chambers and dies. The maximum case needs to fit in the minimum chamber so there is a tolerance between those sizes (the maximum size case has a shorter headspace dimension than the shortest chamber. Additional to this there is a tolerance in both the dimensions the case and the chamber so a minimum case can be quite loose in a maximum chamber. This is the problem that I think @Padox is having. This afternoon when it is too hot for putting firewood away I will try and put some figures on this. For belted cases and some cartridges not originating in the US the problem can be much worse.
Regards Grandpamac.