OK so I have a CVA Accura that the past two years I have been VERY happy with shooting with Pyrodex 100 gr and 295 gr Powerbelts. Took it out to sight in earlier this week and first shot was a couple inches to the right, so I adjusted my scope and shot again. This time I was 8 inches to the left and 6 inches high. I shot one more shot and I was a foot away form that shot. I figured it was the scope, so I removed it and cleaned my muzzy. I took an open sight shot and was way off, so I shot again and the second and third shots were no where close to each other. I figured maybe my powder had gone bad, so yesterday I switched to Blackhorn 209 and put the scope back on. first shoot was pretty darn good, about 2 inches to the left. So I took another two shots and again I was all over. I took the scope off and shot again, (didn't clean with the cleaner powder) and shot right were I wanted to be! I figured I was good, but would take one more shot just to be sure. Same height, but 8 inches to the right???? HELP!!! Any ideas? Is my barrel screwed??? I was using a lead sled and honestly have never had this type of problem.