I was recently browsing through Dixon's Muzzleloading Shop in PA near Hamburg, when I happened upon a very large benchrest muzzloader. It was about 6' 6" from buttplate to muzzle. its hexagonal barrel was 6" to 7" in diameter. the tag read "50+ caliber, molds included". it's most notable feature other than massive size was the fact that it's percussion hammer was on the bottom of the barrel, an inch in front of the trigger guard. i was in a rush and the owner was busy so I didnt get a chance to ask if it had a story. anyone know the origins of this rifle?