I am brand-spankin new to precision shooting with a rifle, and have a question about group measuring. I see two methods people use to measure groups and was wondering which is correct and which is used in competitions?
1. Measure outside to outside of holes
2. Measure outside to outside of holes then subtract the diameter of the bullet
I have been doing some testing of loads for my .223 Rem and have found a good load. At 100 yards, I measured a 5-shot group by going outside to outside (not subtracting .224) and got .6815 inches. So is my group size .6815 or .4575 (.6815 - .224)?
Thanks in advance. I just want to know how close I am getting to some of the numbers I see from competitions.
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