I have one Mauser action that has had 8 barrels shot out on it chambered in 6mm Rem...thats a lot of dead crows, rabbits, ground squirrels, and coyotes. I shot mostly two loads, a 60g bullet at 4000 and an 80g Bullet at 3600. This mauser action was made in the mid 80's.

I don't think that any falling block or break open action could take this kind of punishment, nor several other kinds of actions on the market today.

The SAAMI pressures have to be OK for all kinds of actions. Also, pressures sky rocket below -25*...they have to take that into account also.