nitrorusty Posted July 10, 2007 Share Posted July 10, 2007 i have a benelli nova and the number for its modified choke is .703. my brothers gun uses rem chokes and its numder for modified is .710, does this mean my gun is patterning tighter? Quote Link to comment Share on other sites More sharing options...
tucker301 Posted July 10, 2007 Share Posted July 10, 2007 There are standards, but not all makers follow them explicitly. .703 is smaller, but that doesn't mean yours will pattern more tightly. Other factors such as the length of the forcing cone and backboring may apply to different guns. http://en.wikipedia.org/wiki/Shotgun http://hunting.about.com/od/shotgun/l/aastshotgunfaqa.htm http://federalcartridge.com/default.asp?menu=1&s1=5&s2=9 http://www.ssaa.org.au/newssaa/101-StoriesReviews/shotguns/chokes.html Quote Link to comment Share on other sites More sharing options...
OldFlick Posted July 11, 2007 Share Posted July 11, 2007 All chokes have the same constriction( cyl =0 to full =.035"). The difference is all bores are not the same. The standard for a 12 ga. is from something like .725 to .740" Early SBE was a tight barrel & the Browning Gold is looose barrel. New SBE II is in the middle. Quote Link to comment Share on other sites More sharing options...
HOGWILD Posted July 11, 2007 Share Posted July 11, 2007 close ! http://www.colonialarms.com/pdf-files/page7.pdf you can have two identical chokes as in manufacturers & constrictions and pattern them in the same shotgun and will have different patterns. this has to do with the machining of the choke and it being concentric. Quote Link to comment Share on other sites More sharing options...
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