My stevens will shoot whatever i put in it into a 1 - 1.5 inch group. I feel like the gun is more accurate than that, but the shooter is not. I have shot mostly 50-55 grain FMJ cheapos, but did try some 62 grain remington match ammo. It shot better than the cheap stuff, but not by much; again, I feel like I am the weak link here. I have some 45gr that I havent tried yet, maybe today or tomorrow will work out.