Raimey,
I believe the paragraph you posted applied to nitro proof for rifle barrels, not shotgun.Since the gun was proofed pre 1912, it would have gone by the old rules, regarding whether the proof load or duty load was shown for the shot tubes.Are you comming to B'ham next weekend?
Barkey, you should be able to shoot the drilling with appropriate loads.You seem to have a "leg up" on loading for it because you have some brass.From the age your ammo boxes seem to be, I suspect the brass is berdan primed.It can still be hand loaded, you just must use different process for depriming and use different primers.To be sure, shine a light into the case;if boxer primed, there will be a central flash hole, if berdan primed, there will likely be two offset flash holes.
Mike
Last edited by Der Ami; 07/06/14 10:01 AM.
