777 Load Question
I switched to 777 today and I am not gtting a good group. I am using a load of 100 grains with 209 winchester primers. I use the hornady XTP's 240 gr. At 100 yds, out of six shots, all were in the kill zone, but no relative groups. It seemed as if all shots were within 3 inches each way of the bulls. Basically, no better than a 6 inch group. I was using a rest and also dry patched between shots. After the fourth shot, I cleaned with solvent and shot two more times. Any suggestions would be helpful. I may try moving down to 90 grains. Would too heavy of a load cause what I have witnessed?
Gun: Thompson Center Black Diamond