![](https://i0.wp.com/rifleshooter.com/wp-content/uploads/2016/02/sinclair-gauge.jpg?resize=500%2C381&ssl=1)
7.62x39
Ammunition concentricity and accuracy: Testing the effect of run-out on precision
What is cartridge concentricity? Cartridge concentricity is how straight a cartridge is along it’s center axis. The straighter the round, the lower the concentricity. Ammunition concentricity is measured using a method called Total Indicator Runout (T.I.R.)- sometimes […]
You must be logged in to post a comment.