Nobody seems willing to state the obvious on this, so I will.
"But it should be possible for you gentlemen to obtain SAAMI Proof loads to self test any guns that you have concerns about."
That is poor advice.
SAAMI proof loads are only available to those who have any business applying them, namely manufacturers of new guns and other SAAMI affiliates.
There is more to the business of British Proof than simply firing the cartridges.
Anyone capable of doing the required pre-proof firing inspection is well capable of determining the safety status of a gun without setting off 20K psi bombs in it.
'Out of proof' is a technical term, and not necessarily indicative of an unsafe gun and certainly no reason for destroying one or putting 20 years of stress on it.
Thankfully, we don't have legal issues with proof here.
