I don't think it is the gun. A Knight is a good rifle. If your not happy with that... I would try some loose powder like Pyrodex RS. People might hate it because Pyrodex is dirty, but when it comes down for consistency, its a hard powder to beat. Try 100 grains of Pyrodex RS and some Shockwaves. People might not like shockwaves, but normally they shoot real well. Or try some Barnes MZ, or perhaps some 300 grain XTPs. Move up to a heavier bullet. See what happens.