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Old April 20, 2013, 05:23 PM   #3
drcook
Senior Member
 
Join Date: November 25, 2009
Posts: 285
One for full, two for mod., three for IC.

If you have a dial caliper, you can verify that by measuring at the muzzle and check against this chart

http://www.shotgunlife.com/shotguns/...un-chokes.html
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