Traditions firearms just came out with a new over and under blackpower shot gun. I seen it in the August edition of Guns and Amo. I couldn't find any other info at their web site but it sure looks good, a bit pricy $1600.00, I think other manufacturers will make a cheaper copy. It weighs 12 lbs loaded kind of heavy but good for recoil. Both barrels are zeroed with an adjustment screw that raises or lowers  the other barrel to match point of impact. You gotta check this out.