I found a never shot TC Thunderhawk 21" 50 cal carbine. I took it to the range today. The first two shots at 50 yards were 7" off the target to the right. I adjusted the rear sight in both directions and could never get the next five shots on the paper. I was shooting 80 grains 777 and 300 grain Shockwave sabots. I swabbed the barrel between shots. The rear sight looks like it is too far to the right (in the dovetail. The base screws into the barrel and the sight sits in a dovetail in the base) and that may have thrown eveything off.
Does anyone know of a better rear sight, peep sight, for this rifle. Any help would be appreciated. Thanks.