Here's the sizes of the drill bits you'll need for making loading blocks. .36 caliber patched ball-------------------->3/8 inch drill bit .45 caliber patched ball-------------------->29/64 inch drill bit .50 caliber patched ball-------------------->1/2 inch drill bit .54 caliber patched ball-------------------->35/64 inch drill bit .58 caliber patched ball-------------------->19/32 inch drill bit .62 caliber patched ball-------------------->5/8 inch drill bit
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