I just picked up a Big Horn Arms .410 shotgun on Armslist. These are interesting guns, single shot, open bolt, made in Watertown, SD in the 60's and 70's from what I've heard. They also made a .22 short single shot open bolt pistol, which I also have. It appears most of the parts are common between the two guns, that the stock and barrel are the primary differences.
BUT, the catch is, apparently the .410 didn't shoot normal .410 ammo. The Blue Book of Gun Values mentions a reloadable shot cartridge with reloading equipment included.
Does anyone have any information on these guns and especially the ammo they shoot? Can they also shoot maybe 2" or 1 3/4" .410 shells? A 2 1/2" shell is too long to even fit into the loading/ejection port.
It's an odd duck for sure.
Thanks,
Bitter Bastard