Just finished calibrating a Leupold 4.5 x 14 LR Tactical scope I bought in the early 90's. It clicks off perfect 1 moa (1.047 inches). This is a first having checked many high dollar new market scopes. Have seen some .97 and .95 fractionals, but a 1.00 has been elusive. Sometimes old school is good school. Your experiences many vary.