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.