Have never measured the cylinder in Question, it was acquired with some other stuff. May even be out of round? The gun pictured came as is, but have a 27 8 3/8 to put on it. I will have to cut the rib length to fit as its now close to 10 inches , or may leave off. Recoil is not that bad but the blast incredible. Have not had any extraction problems with the Banshee version, or the Sterling single shot in the regular chamber. Loaded ammo can found at Reeds ammunition, but cases are easily made with one pass in the B&D sizer.

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