[baltz526]

Some old single barrel shotguns are safe with steel shot. remington has said there 870 and 1100 barrels with fixed full choke are safe with steel shot up to #2. no larger. Other single barrel guns with light chokes like imp cyl or modified will survive thousands of rounds of steel shot. As long as you shoot #2 steel shot or smaller. Then you get to the other problem with steel shot, shot smaller than #3 has little use unless your shooting small ducks over decoys. Large shot and full chokes is where steel shot has ruined a lot of shotgun barrels. If you have a specific shotgun in mind, related to your question. I bet someone will be able to give you an idea how safe it is for steel shot.