Reloading Question regarding 410 and 45 colt

NewB7654

Active Member
Joined
Nov 21, 2013
Messages
30
I have a judge that shoots 410 and the 45 long colt. I was looking into reloading then noticed the long colt is .451-.456 but a 410 is only .410. Am I missing something here? 40 something thousandths over sounds like a lot.
 
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