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Post by hillbill on Sept 16, 2021 6:55:27 GMT -5
Largely depends on the bullet weight and speed you want to get to. keep in mind a .40 caliber Is VERY powder/bullet weight specific, they build pressure really fast, much faster than a .45 cal. Give more specifics: plug used? 9/16 or 5/8: If you want a chamber you need to use the 5/8 plug because the .578 drill diameter makes for a larger dia chamber. desired bullet weight? desired speed? also give barrel length and chamber or no. Brake?
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