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March 21, 2011, 07:00 PM | #1 |
Senior Member
Join Date: December 18, 2005
Location: Ohio
Posts: 610
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diameter of different chokes
Do the inside diameter of chokes/choke tubes vary manufacturer to manufacturer, or is there a standard that they all go by? The reason that I'm asking is that I shot in a turkey shoot (first time) yesterday, and I noticed when the chokes were gauged on all the guns, some were tighter than others. I shot the tightest tube that I had that the guage would fit into, while others claiming to be shooting the same choke barely passed inspection. I don't really care that someone's gun shoots a little tighter than mine, it just sparked a little curriosity in me as to if there is a standard inside measurement or not. I'm guessing not. (I did win a couple of rounds BTW).
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March 21, 2011, 07:13 PM | #2 |
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Join Date: January 11, 2011
Location: Jupiter, florida
Posts: 233
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Bore diamiter for different shotguns of the same gauge are different so a full choke in a mossberg will be different than a full choke in a remy, the chokes are made to that make and models standerd bore diameter
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March 21, 2011, 07:19 PM | #3 |
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Join Date: April 18, 2008
Location: N. Central Florida
Posts: 8,518
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Choke constriction is a relation based on bore diameter.
Hallowell has a nice chart here: http://www.hallowellco.com/choke_chart.htm Standard 12 gauge bore diameter is .729.....some go tight at .725, some go very overbore at .740 or .750 - that can make a difference |
March 21, 2011, 07:58 PM | #4 |
Senior Member
Join Date: December 18, 2005
Location: Ohio
Posts: 610
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Aha. So, If I'm reading this right, the tighter the bore diameter the tighter the choke will be wether it be imp or what have you, correct? And If one was to go out looking for a shotgun with the capabilitiy of accepting a certain inside diameter of a choke tube, measuring the bore diameter would be a good place to start? This may be simple stuff for you guys, but I've got light bulbs poppin' on in my head like crazy about this and love learning no matter the subject, so thanks for being patient with my questions. As I've said before, Im a rifle guy tryin' to be a shotgunner.
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March 21, 2011, 08:04 PM | #5 |
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Join Date: April 18, 2008
Location: N. Central Florida
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Example - .005 constriction from the bore is the standard SKEET designation - if the bore is .729 and the choke makes it .724, it is a SKEET choke.......if the gun is bored at .740 and the choke makes it .735, it is still a SKEET choke - in either case, the constriction is .005, and although the is a .011 difference, they are both SKEET chokes in relation to their bore sizes
HTH |
March 22, 2011, 08:35 PM | #6 |
Senior Member
Join Date: December 18, 2005
Location: Ohio
Posts: 610
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Got it. Thanks again.
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