I thank a lot for the comments of both of you guys Franc & Buzz, The gun has 2 1/2" chambers as most of the british shotguns of her era smile. I have couple more british sxs shotguns and i use 30g loads max even in cold weather. Even in my 2 3/4" chambered pigeon gun, i use max 32g loads and i am really sensitive about this issue smile I really thank for the nice comments and being helpful for both of you guys,i am gonna post pictures soon in an old thread of mine regarding the maker of this particular A&N shotgun since i bought the records and the maker of the gun is unkown smile.

All the best!!

Kem