Shotguns / Choke Tubes

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Choke Tube Definition:
A choke tube is; a removable interior tube at the end of a shotgun barrel that controls shot dispersion. Choke tubes typically come in cylinder, improved cylinder, modified, improved modified, full and extra full. Note: A cylinder choke tube produces a very wide shot dispersion, whereas a extra full choke tube will provide a much tighter shot pattern. Different chokes are used for skeet, trap, and sporting clays. In hunting, the type of game and conditions will determine choke tube type.

Choke Tube History:
The current system of screw in choke tubes was introduced in 1959 by winchester with its model 59 semi-automatic shotgun. They discontinued the model 59 in 1965 to make way for their new line of shotguns model 1400 semi-automatic and the model 1200 pump and they were introduced as fixed choke guns, it wasn't until around 1970 they had worked out some problems with their screw in choke system they then offered this in the 1400 and 1200 model shotguns they named their new choke tube system winchoke.
In 1978 the mossberg 500 was first seen sporting the new choke tube system they named their new system accuchoke.
In 1982 weatherby introduced the model 82 with the new screw in choke system they named their new choke tube system multichoke.
After this, all the shotgun manufacturers introduced their own versions and systems of screw in choke tubes.

Choke Tube Selection:
Choke tube selection is a confusing issue amongst a lot of shotgunners but one that is easily explained. Everyone knows how to pattern a shotgun and what they are looking for, which is the ultimate full choke pattern at 40 yards it is this area where it all gets fuzzy and needs explaining.

The reason for placing 70% of the shot in a 30" circle at 40 yards for a full choke is this, the minimum - maximum pattern kill zone, this means the pattern will cleanly kill anything in this circular zone.

Selecting the correct choke tube is nothing more than moving that same exact pattern to different yardages in other words if you want to shoot at a target 20 yards away then select a choke tube that gives you 70% of the pattern in a 30" circle at 20 yards, if shooting at a target that is 45 yards away then select a choke tube that will give you 70% of the pattern in a 30" circle at 45 yards.

Extra Full Choke Tube; delivers a 70% pattern at 45 Yards.
Full Choke Tube; delivers a 70% pattern at 40 yards.
Modified Choke Tube; delivers a 70% pattern at 35 yards.
Improved Cylinder Choke Tube; delivers a 70% pattern at 30 yards.
Cylinder Choke Tube; delivers a 70% pattern at 25 Yards.

Choke Tubes Online At: Cabela's Choke Tubes

Choke Tube Thread Specifications:

Manufacturer/Type	Gauge	Dia.	T.P.I.
Winchester Win-choke Browning Invector Mossberg Accu-choke Weatherby IMC Savage	12	.812	32
Winchester Win-choke Browning Invector Mossberg Accu-choke Weatherby IMC Savage	20	.687	32
Remington Rem-choke	10	.871	32
Remington Rem-choke	12	.812	32
Remington Rem-choke	20	.697	32
Browning Invector plus	12	.820	32
Beretta Benelli Krieghoff	12	.810	1mm
Hastings choke II barrels	12	.817	1mm
Mossberg Ulti-Mag	12	.874	32
Tru-Choke	10	.865	44
Tru-Choke	12	.795	44
Tru-Choke	16	.718	44
Tru-Choke	20	.675	44
Tru-Choke	28	.613	44
Tru-Choke	.410	.478	44
Tru-Choke thinwall	12	.774	44

Choke Tube Interchange Guide:

American Arms	Interchanges with	Fausti/Traditions shotguns style choke tubes
Austin & Halleck Black Powder Shotgun	Interchanges with	Winchester, Moss. 500 choke tubes
Baikal/European American Arms	Interchanges with	Standard Tru Choke style choke tubes
Benelli (Current production-square choke tubes)	Interchanges with	Beretta style choke tubes
Benelli Crio	Interchanges with	Sport II and SuperSport and Cordoba Produced prior to 2006
Benelli Crio Plus	Interchanges with	Super Black Eagle 2, M-2, Ultra Light and current Sport II, Super Sport & Cordoba
Benelli M-4	Interchanges with	Ber/Ben standard choke tubes
Beretta (Current Production)	Interchanges with	Beretta style choke tubes
Beretta Optima	Interchanges with	Optima choke tubes (Models 391A Extrema & 12ga. 391 Teknys) Silver Pigeon II & III
Beretta Optima Plus	Interchanges with	Optima Plus choke tubes (Models 391A Extrema and 12ga. 391 Teknys)
Black Diamond 12ga	Interchanges with	Ber/Ben standard choke tubes
Browning Invector	Interchanges with	Winchester, Moss 500, Weatherby, Maverick 88, S&W and Savage Guns style choke tubes
Browning Invector Plus	Interchanges with	Browning Invector Plus, Winchester Super X2 and Winchester Supreme style choke tubes
BSA	Interchanges with	Beretta/Benelli choke tubes
BSA 20ga Silver Eagle	Interchanges with	Serial #201836 or higher is Ber/Ben if serial number is below, Huglu choke tubes
Caeser Guerini	Interchanges with	Fab Arms
Century Arms/Kahn Centurion & Arthemis 12ga	Interchanges with	Berretta/Benelli
Century Arms/Kahn Centurion & Arthemis 20ga	Interchanges with	Huglu style choke tubes
Charles Daly Current Production Pumps, semi-autos, & Model 206	Interchanges with	Remington Style choke tubes
Charles Daly Current Production O/U	Interchanges with	Winchester style choke tubes
Charles Daly S/S Field II, Model 306, & Model 106	Interchanges with	Beretta/Benelli style choke tubes
Churchhill 12ga	Interchanges with	Fabarm style choke tubes, some models American Arms Style choke tubes
CZ USA 12ga	Interchanges with	standard Beretta/Benelli choke tubes
CZ USA 20ga	Interchanges with	Huglu style choke tubes
DeHaans 12ga	Interchanges with	Ber/Ben style choke tubes
DeHaans 20ga	Interchanges with	Huglu style choke tubes
Fabarm 12ga	Interchanges with	Fabarm style choke tubes
F.A.I.R. (I Rizzini)	Interchanges with	Verona LX choke tubes
Franchi (Current production-square choke tubes)	Interchanges with	Beretta/Benelli style choke tubes
Franchi (Old Style-v choke tubes) Pre 1999 Models	Interchanges with	Fran Choke style choke tubes
H&R 1871/N.E.F. 12ga & 20ga	Interchanges with	Winchester, Moss 500 etc. choke tubes
H&R Pardner Pump	Interchanges with	Winchester, Moss 500 etc. choke tubes
H&R Excell Auto 5	Interchanges with	Verona SX choke tubes
Hastings Choke Tube 1 (Old Style)	Interchanges with	Tru-Choke
Huglu 12ga	Interchanges with	Beretta/Benelli style choke tubes
Huglu 20ga	Interchanges with	Huglu
Ithaca (Old Style-Fine choke tubes)	Interchanges with	Tru-Choke style choke tubes
Ithaca (New Style 12ga.)	Interchanges with	Winchester style choke tubes
Ithaca (All New Style 20ga.)	Interchanges with	Tru Choke style choke tubes
Lanber 12ga	Interchanges with	Lanber style choke tubes
Lanber Imported by American Arms	Interchanges with	American Arms style choke tubes
Laurona (O/U)	Interchanges with	American Arms style choke tubes
LC Smith 20ga (Marlin)	Interchanges with	Fran Choke choke tubes
Legacy Sports Escort & Pointer 12ga	Interchanges with	Ber/Ben standard choke tubes
Legacy Sports Escort 20ga	Interchanges with	Huglu style choke tubes
Marrochi Golden Snip Field O/U	Interchanges with	Browning Invector Plus style choke tubes
Maverick Model 88	Interchanges with	Mossberg 500, Winchester, and Browning Invector style choke tubes
Miroku	Interchanges with	Winchester style choke tubes
Mossberg 500 & 535	Interchanges with	Winchester, Weatherby, Browning Invector
Mossberg 835, 935 & 9200	Interchanges with	835 Mossberg style choke tubes
Mossberg Silver Reserve 12ga	Interchanges with	Ben/Ber choke tubes
Mossberg Silver Reserve 20ga	Interchanges with	Huglu style choke tubes
New England	Interchanges with	Winchester, Weatherby, Browning Invector & Mossberg 500 style choke tubes
Remington	Interchanges with	Remington style choke tubes
Remington Pro Bore	Interchanges with	Model 105CTi, All Parker Models, New 1100 Competition, & Premier O/U
Remington Spartan	Interchanges with	Tru-Choke choke tubes
Rizzini USA, (B) & (I)	Interchanges with	Verona LX Style choke tubes
Ruger Older Models Pre 1992	Interchanges with	Winchester style choke tubes (Short chokes)
Ruger SC Newer Models	Interchanges with	Ruger SC style choke tubes (Long chokes)
Sako/Tikka 12ga Some	Interchanges with	Invector Plus and some with Valmet choke tubes
Savage	Interchanges with	Winchester and Mossberg 500 style choke tubes
Savage 411	Interchanges with	Tru Choke style choke tubes
Savage 512	Interchanges with	Ber/Ben standard choke tubes
SIG Arms (Aurora)	Interchanges with	Verona LX
SKB Short Style	Interchanges with	Winchester and Mossberg 500 style choke tubes
SKB Competition	Interchanges with	SKB Competition style chokes
Smith and Wesson Old Version	Interchanges with	Winchester, Mossberg 500 and Browning Invector style choke tubes
Smith and Wesson Current version 2007	Interchanges with	Ber/Ben standard choke tubes
Stevens and Savage Model 411	Interchanges with	Tru-Choke or Baikal style choke tubes
Stoeger 2000 Semi Auto & P-350 Pump	Interchanges with	Beretta/Benelli choke tubes
Stoeger 2000 Condor (O/U)	Interchanges with	Winchester style choke tubes
Stoeger Luger (O/U)	Interchanges with	American Arms style choke tubes
Stoeger Uplander (Side by Side)	Interchanges with	Winchester style choke tubes
Traditions Semi-Auto AIS2100 12 gauge	Interchanges with	Beretta style choke tubes
Thompson Center	Interchanges with	Winchester style choke tubes
Tri-Star Phantom 411 and TR11	Interchanges with	Rizzini style choke tubes
Tri-Star Phantom Field & Model 380D	Interchanges with	Beretta style choke tubes
Tri-Star Silver Series	Interchanges with	American Arms, Serial#4687037 or larger is Beretta/Benelli choke tubes
Tri-Star Current 3 1/2 Semi Auto	Interchanges with	Crio Plus system
Valmet	Interchanges with	Valmet choke tubes
Verona LX O/U	Interchanges with	Verona LX choke tubes
Verona SX Semi Auto Models	Interchanges with	Verona SX choke tubes
Weatherby	Interchanges with	Winchester, Mossberg 500 and Weatherby style choke tubes
Winchester	Interchanges with	Winchester, Mossberg 500 Weatherby and Browning Invector style choke tubes
Winchester Select Energy	Interchanges with	Browning Invector Plus
Winchester Super X2 and Supreme	Interchanges with	Browning Invector Plus style choke tubes