Thread: What exactly is a MOA rifle??

Originally Posted by suthy

At what point can you call you rifle a MOA rifle?

It requires a confidence level given as a % for the shots comprising the group lying within 1 MOA, in combination with the number of shots taken to form that group. Without these two parameters or equivalent the definition becomes arbitrary.

An example that appears reasonably frequently online to demonstrate this underlines my aversion to 3-shot groups: a 3-shot group gives you 95% confidence that future shots won't impact outside a circle about 3 times bigger than that single group. So if a rifle shoots a single 3-shot 1 MOA group does that make it a 1 MOA rifle or a 3 MOA rifle ?