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i would think because you are starting with a larger diameter bore before the choke. just a guess though. anyone else got any ideas? from what ive read with the 10 ga, i have an sp-10, shooting #4 you want around a .690-.695 , shooting #6 you want a little tighter like .675-.680

Edited by - gobble stopper on 02/21/2002 19:44:32

gobble stopper is correct. If you were able to get a 12 GA diameter full choke on that gun you would either blow the pattern... or the end of the barrel off!

No jakes!