Hi all,
I'm looking at a beater hammer gun, Belgian for British export. It looks like it has Birmingham proof marks. Can some more knowledgable people than I tell me what this all means? I know the gun is proofed at 1-1/4oz, 2-3/4 chambers, and I think it was proofed after 1904 right? What can I safely shoot out of this thing? Psi? Thanks!