One thing to keep in mind, most barralled actions in England...and other places by that matter go to the proof house before hardening, I think the vast majority pass proof.

This quote from David T's Technicana " at this point ,the gun...essentially a barrelled action with locks, fasteners, and ejectors but lacking triggers and a trigger plate, went back to the Proof House for definitive proof. Then it was ready for the stockmaker"

I would say if they can handle a few heavy proof loads it should be able to take some target loads...just don't overdo it, but it should be re-hardened at some point.

CJ

The taste of poor quality lingers long after the cheap price is forgotten.........