What is the truth with shot weights in the proofs of British guns.
I have always believed that if my gun is proofed for 1 1/2 oz then I can shoot up to & including 1 1/2 oz of shot.
Like wise if my gun is proofed at 1 1/8 oz it includes 1 1/8 oz but not more. Same for 1 1/4 oz.
Why do I then see some say to keep under the 1 1/2 oz or 1 1/4 oz proof weight ? eg. Would they only shoot 1 1/8 oz in a 1 1/4 oz gun ?
Was that gun not shot at the proof house with a double charge & then deemed to be safe to shoot at the stamped weight ?
I have a 1925 British pigeon gun 3" chambered with a proof shot weight of 1 1/2 oz.I know enough to not shoot 3" magnum loads in it because the old 3" live pigeon load was a lot lower pressured load.
But that gun will eat any modern 2 3/4"load, right ?
O.M
