11-14-2011, 08:22 PM
The most accurate way is to measure far side to far side of the two widest seperation holes, then deduct the diameter of the bullet. Thus....
Far side to far side equals 1.264 inches. Deduct the diameter of the bullet, 1.264-.264, and you have a 1 inch group.
LRRPF52's method is also accurate, but sometimes it is impossible to find the inside edge if two shots overlap.
Center to Center is impossible, because you are simply guessing where the actual center is, AND having to guess twice in the same measurement!
Far side to far side equals 1.264 inches. Deduct the diameter of the bullet, 1.264-.264, and you have a 1 inch group.
LRRPF52's method is also accurate, but sometimes it is impossible to find the inside edge if two shots overlap.
Center to Center is impossible, because you are simply guessing where the actual center is, AND having to guess twice in the same measurement!
You seek escape from pain. We seek the achievement of happiness. You exist for the sake of avoiding punishment. We exist for the sake of earning rewards. Threats will not make us function; fear is not our incentive. It is not death that we wish to avoid, but life that we wish to live. - John Galt