I have breech loading hammered Henry rifle #1009 and since I just got my copy of the new Henry book and I am trying to figure out exactly what I have. My question is that the bore is listed at .451. The chamber (I have not cast it yet) is for a long straight wall cartridge. The rifle is in need of some restoration as it is missing the hammers, firing pins, and firing pin retainers. Needs a new fore arm fit (I have the iron and a new un drilled tab is present on the barrels), and re-engraved. Bores are about mint so it is probably worth restoring if I can figure out what it is chambered for so any help would be appreciated. Thanks, Larry