I use the barrel of my G34 as a "gauge" when setting up a new projectile for the first time. Once it's set up and i'm pumping out rounds I just use a regular gauge. I've found very few outright rejects. Anything borderline went into the practice bin and still got shot.Same here. Well I use my guns barrel to check a “few” here and there. Mainly when using new bullets for the first time.
Has served me well so far.
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