Cary, the barrels are steel and the gun is proofed for modern 1 ounce loads. I would be content to shoot 7/8 ounce and that is probably what I will load for it. The gun fits very well and if the birds didn't have anything to worry about already they do now. I am going to have to get out and do some fishing. Otherwise I will go crazy waiting for November to get here.

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