Upgraded this fall to an omega from an old knight mk-85. The knight would get tight after 10-15 shots using pyrodex and hornady sabots. This new omega is tighter on the first shot than the knight was at the fifteenth. Second shot without swabbing was an impossibility. I was using 2-777 pellets and sst's. I tried the hornady sabots and powerbelts, but the sst's grouped the best. ANY HELP?????????