I've been working on a rifle that has developed disappointing velocity and it has been suggested that the bullets may be on the fat side of things. I got my micrometer out and started measuring and I get .2642 to .2644 with almost all hitting .2643. Since I have never measured bullet diameter before I have nothing to compare it to. Is this fat for a .264 bullet or about average ? Who makes skinny bullets ? Who makes fat bore barrels if my bullets are fat ? Who make skinny bore barrels ? The more I learn the less I'm sure of my knowledge
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