Got my rifle barrel back from Hoyt, had it made into a 54 with 1-63 twist. It seems you have to load it pretty hot to get it to shoot good. 70-90 gr of black with tight patched ball accuracy wasnt what i expected. I get up to 100 gr and every thing tightened up. That long twist you must have to load hot to get it to shoot good. It was a little hard on the shoulder. I have only tried 3f. I was using a mag spark with 209 primer. Going to try 2f next trip out. This is a TC Hawkin with 28 inch barrel. I was shooting three shot strings and then cleaning. That mag spark is pretty slick. Shot it 32 times and not one failure to fire. Any one here have the same results with a long twist?