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Bullet Runout

Bullet Runout:

Bullet runout is the amount an entire loaded round is out of a true straight line from center point on the case head to the point of the bullet.

Our Concentricity Gauge measures the internal and external neck runout of your cartridge case as well as seated bullet runout. It can also measure the runout of the ogive, bearing surface and boat-tail of individual bullets and can even measure your primer pocket runout.