I bought an older 870 Wingmaster pump off my neighbor. It’s a 28 gauge with a plain barrel with no screw in chokes. The barrel is improved cylinder. I talked with Hawglips on here about tss for turkeys. That may work but I have not tried it. I did try some 5 shot today on paper and it was terrible. At 30 I don’t think it would have killed anything. At 20 it wasn’t much better. Question is can you have a gun smith thread the barrel. Does that mess up the value of the gun. If I can’t do anything to it is there a shell you would try for just regular bird hunting. If it was yours what would you hunt with it or what shells would you try. Thanks