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Forum › General › General forum instructions › Explanation for the 300 AAC Blackout molds are .311 instead of .308
I’m new to casting bullets and having some issues trying to find out why some molds are .309 (LEE) and MP molds are .311 yet the copper jacketed bullets are.308. Am I suppose to buy a .308 sizing die? On the LEE mold they had .309 sizing die listed for the .309 mold.