Most importantly, if you intend to shoot a second hand or antique double barrel shotgun you should ring the barrels , Take the barrels out of the stock , hang them off a finger and gently tap the barrels with a piece of wood , something like a screwdriver handle will do or even flick them with your finger, The barrels should ring like a tubular bell , listen carefully , if there is a dull clunk sound the barrels may have come separated in the middle and are separating , if there is a buzzing sound there is rust between the barrels .
J Egg was a great maker , he developed a lock with and external mainspring , made Baker rifles , Made rifles for the British to trade with the Canadian Indians .