Thread: headspace in a break open rifle

The key phrase by akaroa the is "All these calibers are RIMMED CASES except for a Contender 6.8 SPC so that might be an important consideration.

Spacing off the rim means the case isn't forced forward by the firing pin, to ignite and grip the chamber and stretch back to the breech face"
With extensive use break action guns can get sloppy in the lockup, how many 12 gauge old shotties have you seen that wobble?. Often they were fixed with a paper or brass shim.
I suggest you get a tally counter Micky and neck size only put me down for 32 reloads before you either give up, loose the case or it fails