I shoot 100 gr. loose clean shot with a 300 gr. Hornady bullet and sabot it gets about 1 1/2 groups at 100 yds,I use a dry swab after every shot,They're hard to load but they shoot better in my gun.I also got pretty good groups with 240 gr. Hornady bullets but they came apart in a deer so I switched to the 300 gr. They held together better.