Rflshootr
Well-Known Member
Huh? Outside to outside at the widest point minus bullet diameter is center to center.Not if you are measuring the group center to center….
Huh? Outside to outside at the widest point minus bullet diameter is center to center.Not if you are measuring the group center to center….
you can do it that way, but when there is paper missing, you can only eyeball center. It is much more accurate to measure the widest outside points, then measure a hole in the paper, and subtract the two from each other. No doubt, still a very nice group from a hunting rifle. If you remeasure, I think you'll find your group is in the .3's.I added the distance between the center of all 3 and divided it by 3.
From what I've read here in the past, there are quite a few ways to measure groups. Whether it's a 0.16" or 0.284", I still love those cloverleafs, as long as they hold at longer ranges.
Wow, great idea! You learn something every day.The easiest way for me to measure group size is this -
Close your calipers on an unfired bullet
Zero your calipers
Measure the outside diameter
That will give you the C to C without any math
Try it, you'll like it.
Bob
Sorry, I misread your post. For a minute there I thought it said two bullets holes right on top of each other.Huh? Outside to outside at the widest point minus bullet diameter is center to center.