Have that same model gun that is marked with a hardware or department brand name "Premier Trailblazer".
Mine was a hand-me-down from my father, has an octagon barrel, the finish has been neglected, but shoots shorts, longs, or long rifles interchangeably.
Not a bad little plinker or squirrel gun if you can shoot with open sights. It isn't grooved or drilled for a scope, and I'm not going to alter a vintage gun, even though it isn't in great shape.
It will be handed down to the kids when I am done with it.

Myron