Quote:
Originally Posted by Jerry Harlow
With a dime if it won't go through you at least know it is .705 or tighter, and depending on how far it goes into the choke at least you have an idea.
It beats knowing absolutely nothing about the choke when you come upon a gun and aren't prepared.
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Reading through some old threads, a 12 gauge bore diameter could be anywhere from .729-.751 though.. So I guess I'll have to wait and see.