this rifle started its life as a .50 caliber bandit carbine. Bob Dean AKA Big Bore Bob did his uber tune with valve work and titanium hammer and cocking handle. Then he put a .457 barrel on it from Dennis Quackenbush. This rifle is powerful but not as much as the LA .458. The cost of this work was $285 plus the cost of the .457 barrel. Modified to deliver 3 shots near 450 ft lbs. Grade 4++walnut stock which is beautiful with lots of figure. Asking $1100 plus shipping and insurance. This is a one of a kind Quackenbush rifle in .457 as a carbine. There is a scratch on the barrel and a very small pressure mark on the stock, otherwise, I would be asking more for the rifle. The serial number on the barrel from Dennis is 838. More questions please feel free to call me or text me.