Remington742
Well-Known Member
Okay so I am shooting a 870 with a cantilever type scope mount with a Nikon prostaff slug hunter bdc scope on it. I have shot several brands of slugs through it and the slugs that group the best are shooting low at 25 yards and high at 50 does anyone know why this would happen. If it helps I did buy it and haven't sighted in at a specific range but am pretty sure it was zeroed at 100 yards. I just don't understand why it is low at 25 and high at 50. Thank you in advance.