i have a singleshot break open shotgun with 30" barrel and solid wooden forearm and stock. the only markings on the gun are 1) BISON and 2) choke. there is nothing else on it. can anyone help me
2)choke usually is the same as modern extra-full chokes. I heard if it didn't have choke anywhere on the barrel, it could be a cylinder to a imp/cylinder. Hope this helps.