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< 16ga. General Discussion ~ Choke constriction and choke markings |
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Posted:
Wed Apr 19, 2006 10:24 am
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Member
Joined: 28 Dec 2005
Posts: 2016
Location: Glendale, AZ
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Two helpful charts available (of course the Hallowell chart doesn't include 16g. )
http://www.hallowellco.com/choke_chart.htm
and from Briley
http://briley.com/index.asp?PageAction=Custom&ID=12#9
Browning choke markings: * =Full.*- = Imp. Mod.,** = Mod.,**- = Imp.Cly., **$ = Skeet and *** = Cly.
Beretta and most italian guns:
F=full=1 star
IM=Improved Modified=2stars=3/4choke
M=Modified=3stars=1/2choke
IC=Improved Cylinder=4stars=1/4choke
CL=Cylinder=5stars=true cylinder(skeet?) or no choke at all, |
Last edited by revdocdrew on Wed Nov 01, 2006 7:11 pm; edited 3 times in total |
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Posted:
Thu Apr 20, 2006 9:32 am
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Member
Joined: 28 Oct 2005
Posts: 665
Location: Louisiana
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Don't know how useful (or interesting) this information will be but thought I'd pass it along--can't remember just exactly where I copied this chart but I'll try to locate the reference. The complete chart includes 12's and 20's BUT this IS a 16ga. site so----------------
Browning Remington Winchester
BD-.665 BD-.673 BD-.664
Full Choke .628 (.037) .640 (.033) .633 (.031)
Modified .640 (.025) .656 (.017) .648 (.016)
Imp. Cyl. .649 (.016) .665 (.008) .657 (.007) |
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Posted:
Thu Apr 20, 2006 6:41 pm
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Member
Joined: 08 Nov 2005
Posts: 3438
Location: Illinois
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Chokes and charts----there are two never ending subjects--hows come the makers can't agree on a standard---a real standard among themselves |
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Posted:
Fri Apr 21, 2006 5:11 pm
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Member
Joined: 01 Dec 2005
Posts: 235
Location: Southern Oregon
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Posted:
Fri Apr 21, 2006 5:16 pm
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Member
Joined: 26 Apr 2005
Posts: 743
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Woodcock, your chart comes out of Jack O'Connor's "Shotgun Book". Sure shows some differences, especially between Browning and the other two. Especially on older Brownings, of all gauges, their chokes tended to be tighter than anyone else's. |
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Posted:
Sat Apr 29, 2006 3:49 am
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Member
Joined: 21 Feb 2006
Posts: 73
Location: PA Dutch Country
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Posted:
Sat Apr 29, 2006 4:29 am
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Member
Joined: 27 Jun 2005
Posts: 1545
Location: Michigan
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High$Trap, Do you have one of those bore gauges?
If you do, how do you like it. |
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Posted:
Sat Apr 29, 2006 4:24 pm
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Member
Joined: 21 Feb 2006
Posts: 73
Location: PA Dutch Country
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No sorry, I have never used one. I use a gauge very similar to the Boremaster in my everyday work so I think it would work very well.
I just think it's a little salty price wise for all the more a guy would use it.
I keep tryng to find a choke mic cheap on Ebay.
Hope the charts are usefull though. |
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Posted:
Sun Apr 30, 2006 8:01 pm
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Member
Joined: 02 Feb 2006
Posts: 602
Location: western pa
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A telescoping gauge and an 0-1 mic are fairly inexpensive ( you can get them on Ebay) and accuratly measure bore diameters. Numbers and charts are always fun to study but the old pattern board is what really tells the tale. |
_________________ Always get get a drink upstream of the herd-Will Rogers |
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Posted:
Mon May 01, 2006 5:43 am
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Member
Joined: 02 Jan 2006
Posts: 21
Location: Spencer IA
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I have a Stan Baker bore gauage I bought at a gun show for 50.00 and it works great.Brownell has them in there catolog for around 400.00. It has information sheet that tell choke chamerber bore for all gauages. I was trying to post the info but could not figuer out how to do it |
_________________ M12 The Greatest Hammerless Repeating Shotgun Ever Built By David Riffle |
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Posted:
Mon May 01, 2006 7:46 am
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Member
Joined: 31 Oct 2005
Posts: 446
Location: Wisconsin
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I use a Galazan Pro Bore gauge along with Galazan chamber gauge set. I have seen so many shotguns with altered chokes and chambers that I would never consider purchasing a shotgun unless I had measured the restrictions and chambers. A little money spent considering the cost of a good shotgun. -Dick |
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Posted:
Sat Jul 22, 2006 12:44 pm
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Member
Joined: 28 Dec 2005
Posts: 2016
Location: Glendale, AZ
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Posted:
Sun Jul 23, 2006 5:55 am
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Joined: 23 Jul 2006
Posts: 1
Location: massachusetts
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Posted:
Sun Jul 23, 2006 3:36 pm
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Member
Joined: 31 Aug 2005
Posts: 1257
Location: Nebraska
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Agree with Dick. I've encountered several guns with altered barrels although in only one case did it alter my decision to purchase. Helps to know what the manufacturers decided were proper constrictions for their markings, and brings a little more meaning to the patterning work. Which, as Fred states, is required to know what's going on out there where the pellets hit.
kgb |
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Posted:
Mon Jul 24, 2006 4:54 am
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Member
Joined: 12 Mar 2005
Posts: 6535
Location: massachusetts
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Welcome aboard Mike. I'm certain your knowledge and expertise will be a most welcomed addition to the site. 16gg. |
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