Well I have a System One and and an Omega [both are TC made] both are excellant shooters the Omega with the 50/40 200gr Shock Wave will tear a ragged hole at 100yd with 5 shots and is the best long range muzzleloader that I have ever had and I have 14 at the moment. Some with Spanish barrels shoot good groups but due to the type steel used to make them I personally wouldnever put more than 100gr black or equivlant of black. Since I also have a need for long range I like 150gr of APP and a 50/40-200gr Shock Wave and above and beyond the load they are made to fit TC barrels so getting that kind of accuracy out of anything else with them is kind of chancy. Lee