Factory Choke Identification Codes. AMERICAN TACTICAL IMPORTS. BERETTA. BENELLI/FRANCHI/STOEGER. REMINGTON SPARTAN (SPR) NOTCH CODES. BROWNING …Rizzini USA would be able to help as well. I got it figured out. Briley's site had pics and measurements for the different Rizzini choke styles. The 28 gauge on the left is a Rizzini choke, the the 20 gauge in the middle and the 12 gauge on the right are both Rizzini plus chokes. The 20 gauge has different measurements to the threads than the ...Sep 16, 2012 · Huglu fixed choke markings. Looking at an older fixed choke TR Import gun for my wife at a local shop. Choke markings are 1 circle and 2 circles. Just wondering what they constriction that relates too? Wish I could help you, you will have to wait for 2few, or Riflemeister to help you out. A choke is simply a tapered constriction of the gun barrel’s bore at the muzzle end. The exit end of the choke is smaller by some dimension than the actual bore of the barrel. This difference is the amount of constriction. For example if the bore of the barrel is .730 and the exit dia of the choke is .710 you have a constriction of .020.Choke Type: Identification (Notches, Stars, Alpha Code, or Color Band) Extra Full: No notches, no stars, XFULL Turkey, no color band: Full Choke:2786 posts · Joined 2014. #2 · Nov 2, 2015. 2 and 4 would be modified and full. They would be the same as Ithaca guns since the Nitro Special is a Lefever in name only, Ithaca made all of them after acquiring Lefever - but I believe that you already knew that.The choke tube markings on a Franchi 48/AL 28 gauge semiautomatic shotgun will usually be printed on the side of the choke tube with an identification letter. The letters commonly used are C (Cylinder), IC (Improved Cylinder), M (Modified), and IM (Improved Modified).barrels. Choke designation indicates the dispersion pattern characteristics of the shotgun bore. The chart on the following page provides identification for choke and a pattern percentage within a 30 inch circle at specified ranges. Identification Description Percentage Distance 1/1 Full Choke 7 0 - 75 3 5mYou never know what a choke is until the bore and muzzle are measured. If it is cyl/ic, Mike Orlen can jugchoke them and bring them to ic/mod. A cyl. choke is going to shoot cyl.; period. Who ever is selling the gun may have gone by a ***** stuck in the muzzle. However, the ***** may be based on a .662 bore and 16 ga bores run from .660-.670.Sep 25, 2019 ... Shooting forum · Shotguns - 12 gauge, 28 gauge, 410 bore etc. Miroku choke markings & steel. Double barrel, side by side, over-under, semi ...Most double shotguns represented here. Double gun shotguns - Side by Side shotguns, and over under shotguns - Including drillings, double barreled rifles, SxS double rifles, combination guns. Makers - Darne, Merkel, Arrieta, Beretta, Browning, Holland, Purdey, Richards, Bernardelli, Parker, Fox, LC Smith, and most other double barreled shotgun, …The gun I shoot most often is a Winchester 1400 automatic with a trigger to butt pull of 13 3/4. I tried an old Remington Model 11 and it actually felt too short. ... As a matter of fact, for other lucky readers with Belgian Browning shotguns, here is the entire list of Browning choke markings. Remember, this is for the Belgian guns: Full ...May 29, 2022 ... The UK markings are 1/4,1/2,and 3/4. Guns that are shipped to different country's use different choke designations. The German choke tubs are ...Choke identification will be found as small stars & dashes stamped on the LH side of the rear of the barrels near the extractors, covered up by the receiver when the barrels are closed. This system is similar to the current Browning Citori firearms made by Miroku with the exception of the skeet choking. APPARENT SHOTGUN BARREL …Mark Lowry is a renowned comedian, singer, and songwriter who has been entertaining audiences for decades. With his unique blend of humor and heartfelt storytelling, Mark has capti...Many fixed choke shotguns have choke information etched or stamped onto the barrel. Look for abbreviations like “F” for full choke, “M” for modified choke, and “IC” for improved cylinder. Use a Choke Gauge. Choke gauges, readily available at most popular retailers, are simple tools designed to measure choke constrictions.In this digital age, live streaming has become a popular way for content creators to engage with their audience in real-time. One such show that has embraced this trend is the Mark...Dec 9, 2023 · Understanding the Notch System. The notch system used can vary between manufacturers, but most commonly, a single notch indicates a full choke, suitable for long-range shots with a tight shot pattern. Two notches typically represent an improved modified, providing a slightly wider pattern. Huglu fixed choke markings. Looking at an older fixed choke TR Import gun for my wife at a local shop. Choke markings are 1 circle and 2 circles. Just wondering what they constriction that relates too? Wish I could help you, you will have to wait for 2few, or Riflemeister to help you out.Many fixed choke shotguns have choke information etched or stamped onto the barrel. Look for abbreviations like “F” for full choke, “M” for modified choke, and “IC” for improved cylinder. Use a Choke Gauge. Choke gauges, readily available at most popular retailers, are simple tools designed to measure choke constrictions.1. Visual Method. The fastest way to identify the “Family” is to take down one choke you are currently using on your shotgun, clean it and cheek the markings on the side of the choke, here an example: In the example image, you see an Optima-Choke HP Choke. Note: Mobile-Choke “Family” could also be marked as “PB” or “ST”.Feb 20, 2024 · Simply visually inspect the muzzle of your shotgun to determine which type of choke tube you have. 7. Do Stoeger choke tubes come with wrenches for installation? Many Stoeger choke tubes come with a wrench for easy installation and removal, but it’s always good to have a dedicated choke tube wrench for added convenience. 933 posts · Joined 2012. #20 · Jul 29, 2016. Some trivia collector minutia - The choke words were stamped on the barrels prior to 1929. The transition from the barrel address from Ogden to St Louis began in 1929 and completed in 1930.In today’s fast-paced digital world, live streaming has become a popular and effective way for individuals and businesses to connect with their audience in real-time. One such live...Deciphering Auto 5 metric choke markings. I recently acquired a 16 ga. pre-War Auto 5 with a serial number in the 51,000 range. It does not appear to have the asterisk-style choke markings, but on the underside of the barrel it is marked as shown. I am assuming that this might represent a choke with a 0.1 mm constriction (16.9/17.0 mm).Jul 24, 2004 ... The one where the finger goes in the least is full choke. The one that goes in the furthest is something like Cylinder, Skeet or IC. Once you've ...The fixed-choke barrel on this old Winchester shotgun is clearly marked as having a Full constriction. Most modern shotguns of all styles now come with what are known as “interchangeable chokes.” These are short tubes of metal tighter in diameter than the shotgun’s barrel.Choke tubes help sharpen your shotgun’s accuracy when hunting game and offer a myriad of benefits for hunters. Among the top remains the fact that chokes give you the ability to turn a single shotgun into a tool capable of specializing in many types of game hunting.Neither open nor tight. This is the do-all choke. Improved Cylinder (IC): This moves to the more open end of patterns. It can be used for closer range clays, bird hunting at close range, and is ...As a general guide:-. 1 star or notch is Full choke. 2 stars or notches is Improved Modified or 3/4 choke. 3 stars or notches is Modified or 1/2 choke. 4 stars or notches is Improved Cylinder or 1/4 choke. 5 stars or notches is Cylinder or no choke, this tube may also have no markings at all. This all pales into insignificance when you look to ...It has a modified choke, but like all .410's it throws a truly lousy pattern no matter what choke is used. To twenty five yards, a .410 will work. Twenty yards is much, much better. Anything much over thirty yards and a .410 will spray it's pellets all over the place. A .410 is really not a beginnner's gun.I can find no other markings on the gun other than a "G" and "35" stamped on the bottom of the barrel where it is covered by the receiver when the gun is assembled, and also a "G" and "35" stamped on the inside of the receiver where it is covered by the barrel when the gun is assembled. There is no other serial number or choke marking on the gun.A5 guy. Thanks for the confirmation on the chokes and the judgement on the Grade (>>Looks like a Diamond Grade. Nice gun!<<) When my uncle bought this gun almost 40 years ago at the Okinawa PX, he also bought a Browning Auto 5 at the same time. Small coincidence. Anyone else want to weigh in and confirm or deny the Diamond Grade hypothesis?933 posts · Joined 2012. #20 · Jul 29, 2016. Some trivia collector minutia - The choke words were stamped on the barrels prior to 1929. The transition from the barrel address from Ogden to St Louis began in 1929 and completed in 1930.A small batch, high-end shotgun. Hand polished receiver with custom engraving and 24k gold inlays and exhibition walnut. Available in 12 and 20ga., 3" chambering. ... Choke Tube Identification. Choke tubes can be identified by the number and placement of small notches found on their muzzle (non- threaded) ends. O: Extra Full: I: Full: II:Fixed chokes will be marked on the barrel block, either as the end bore, constriction, or choke. For example, my 1963 SKB Light it's marked Imp and 3/4 on the block next to the extractor tunnel, whereas my Baikal o/u has the constrictions of 1.0 & 0.5 (mm) marked (approximating to full and half). Multi chokes are usually marked with dots …Shotgun Choke Markings. A shotgun choke is found inside the bore of a shotgun barrel. It basically has a series of markings that helps shape the spread of the shot that is fired as it is coming out of the barrel. The specific choke you use determines the range and accuracy of the shot.In the 1960s the Belgian Browning choke designations were: Full Choke *. Improved Modified *-. Modified **. Improved Cylinder **-. Skeet **$. Cylinder ***. By the way, this information is from the excellent Belgian Browning. reference book “The Browning Superposed” by Ned Schwing, Krause.However, it’s best to pattern your shotgun with different chokes to determine which one works best for your specific hunting situation. 5. Can I shoot steel shot through my Stoeger choke tubes? ... Stoeger choke tubes often feature markings on the side or notches on the top rim that indicate the choke constriction, making it easy to …Jun 26, 2014 · Browning BSS 20ga chote markings. I have a 20 ga 26" tubes,fixed chokes, where are the choke markings on the barrel. I am use to the old system of stars and dashes. This is a BSS and the only thing I see under the forearm is a 3 on one barrel and a 5 on the other. Any help would be appreciated. Arikara. Correct. For a while in the Flues era Ithaca marked the chokes as a fraction -- 1/4. 2/4, 3/4 & 4/4. Mine is marked 2 on the right tube and 4 on the left. Pretty much standard choke selections for general hunting purposes. Thanks for the photo. your gun is apparently older than mine. My sn begins with 372XXX.933 posts · Joined 2012. #20 · Jul 29, 2016. Some trivia collector minutia - The choke words were stamped on the barrels prior to 1929. The transition from the barrel address from Ogden to St Louis began in 1929 and completed in 1930.Thanked 222 Times in 91 Posts. You need to measure them with a bore gauge to determine the actual choke. Choke is the difference between the nominal bore size and the constriction of the bore at the muzzles (s). For a 12 gauge GH Parker steel barrels the bore will likely be .730" +/- and a full choke constriction around .035".The choke tube table above shows the diameters and constrictions you can expect for choke tubes and shotgun barrels for Benelli 12-gauge and 20-gauge shotguns featuring the Crio, Crio Plus, and Mobil choke systems. Knowing the diameter of a choke tube is important in order to identify choke tube constriction.Choke Notches and Their Meanings. The notches on a shotgun choke are there to indicate the constriction level and the resulting pattern it produces. Each notch represents a specific choke setting, allowing you to determine the amount of spread your shot will have.The constriction of a Benelli choke tube can be determined by the markings or notches on the end, which indicate its level of tightness. Can I use lead shot with all types of Benelli choke tubes? Most Benelli choke tubes are suitable for use with lead shot, but it’s important to verify this information with the specific choke tube in question.Sep 16, 2012 · Huglu fixed choke markings. Looking at an older fixed choke TR Import gun for my wife at a local shop. Choke markings are 1 circle and 2 circles. Just wondering what they constriction that relates too? Wish I could help you, you will have to wait for 2few, or Riflemeister to help you out. As with all other types of firearms in the United States, shotguns must be engraved with a serial number by the manufacturer. This serial number often provides information about th...A choke is the tapered constriction of a shotgun barrel’s bore at the muzzle end. The purpose of a choke is to alter the distribution of the shot as it leaves the firearm. The various size chokes constrict the barrel thus tightening the spread of the shot. Thus, the thicker the choke, the further and tighter the shot will travel.Understanding the Notch System. The notch system used can vary between manufacturers, but most commonly, a single notch indicates a full choke, suitable for long-range shots with a tight shot pattern. Two notches typically represent an improved modified, providing a slightly wider pattern.Check the barrel markings: The easiest way to tell what choke is in your shotgun is to check the barrel markings. The choke markings are usually located on the side of the barrel near the muzzle. The markings will indicate what type of choke is in the barrel, such as “CYL” for cylinder, “IC” for improved cylinder, “M” for modified ...Your distance from the target determines the choke you need. The choke of a shotgun determines shot string only. It has no bearing on shot speed (velocity) or ...Sep 14, 2023 ... Perazzi shotgun choke markings are as follows the KG xxxx is the gram weight of the barrels the 18.4 being .724", 18.5 being .729" is the ...But is there a standardization of choke markings ? Have several brands of shotguns -- both old and new, American and European, and with fixed-chokes and screw-in chokes. When glancing at the choke markings, can't remember whether more *asterisks means tighter or more open chokes. Is the marking pattern consistent for all shotguns - … A shotgun barrel’s choke will be located at the muzzle end of the barrel and you will encounter them in two different designs. The oldest way is called a “fixed choke.”. Many side-by-side and older single barrels will have fixed chokes, meaning that their barrels have the choke constriction built-in to the end of the barrel at the muzzle end. Choke markings; 15.7 is the metric bore size. The 15.3 and 15.1 are the muzzle measurements. 15.7 divided by 254=.618 which is very close to normal bore size for a 20. 15.3 divided by 254=602: difference of .015=mod. choke. 15.1 divided by 254=.594: difference to bore; .024=full choke. over the hill and picking up speed.One of the annoying things about shotguns is that they often don’t shoot the way they are marked. This is particularly true of older guns that were designed before modern wads. The pattern board is nothing more than a target stand with a 30” circle. A full choke should put 50% of the pellets in the circle at 40 yards.Huglu fixed choke markings. Looking at an older fixed choke TR Import gun for my wife at a local shop. Choke markings are 1 circle and 2 circles. Just wondering what they constriction that relates too? Wish I could help you, you will have to wait for 2few, or Riflemeister to help you out.1. Gauge. The gauge marking on a Tristar choke tube indicates the shotgun gauge for which it is designed. Tristar choke tubes are available for various gauges, including 12, 20, 28, and .410 bore. It is essential to match the gauge of your shotgun with the corresponding choke tube for proper fit and function. 2.As a general guide:-. 1 star or notch is Full choke. 2 stars or notches is Improved Modified or 3/4 choke. 3 stars or notches is Modified or 1/2 choke. 4 stars or notches is Improved Cylinder or 1/4 choke. 5 stars or notches is Cylinder or no choke, this tube may also have no markings at all. This all pales into insignificance when you look to ...Optima-Choke choke tubes will be marked Optima-Choke. The start of the threaded portion of the Optima-Choke tube is located a nominal 50.78 mm (2.00 inch) from the breech end of the choke tube. The length of the threaded portion is a nominal 15.9 mm (.625 inch). The major diameter of the choke tube thread is 20 mm (.787 inch).Choke Notches and Their Meanings. The notches on a shotgun choke are there to indicate the constriction level and the resulting pattern it produces. Each notch represents a specific choke setting, allowing you to determine the amount of spread your shot will have. The tighter the choke the heavier the radial forces, the tighter the pellets are squeezed together so the pattern holds tighter over a longer distance. Conversely, the less restriction you have in the shotgun choke the more loosely the pellets are held together and the faster the pattern opens up. There you have it! Barrel Markings Method. Serial Number Method. Choke Tube Constrictions chart. How can I identify which screw in choke tubes I should use in my Beretta shotgun: Mobilechoke, Optima-Choke, Optima-Choke Plus, or Optima-Choke HP? Here we present different methods by which you can identify the right choke for your shotgun. Optima-Choke choke tubes will be marked Optima-Choke. The start of the threaded portion of the Optima-Choke tube is located a nominal 50.78 mm (2.00 inch) from the breech end of the choke tube. The length of the threaded portion is a nominal 15.9 mm (.625 inch). The major diameter of the choke tube thread is 20 mm (.787 inch). Definition of Chokes. A choke is a tapered constriction of a shotgun’s barrel bore at the muzzle end. Chokes are used to shape the spread of the shot in order to gain better range and accuracy. They come in different types, each designed for a specific purpose in shooting. Definition of Skeet Shooting.A choke is a valve installed in a carburetor that restricts air flow, which enriches the fuel-air mixture when an engine is started. According to Autorized.com, a choke is designed...No sense in wasting time patterning chokes that duplicate each other, unless there is some secret meaning to these markings. Save Share. Like. RWH24. ... The front AND rear inside diameter of the tube are identical to the normal Full choke tube that also came with the gun. 3. The tube is a proper fit in the threads of the 26" LC barrel, …The choke tube table above shows the diameters and constrictionsyou can expect for choke tubes and shotgun barrels for Winchester 12-gaugeshotguns compared to common fixed choke shotgun gauges. Winchester shotguns have two different choke systems. Some models are compatible with Invector style threads, while others have Invector Plus style threads. If you have only one marking per barrel; it is the bore diameter. Some of those old Belgians had small bore `12 ga. 1
Frank Lopez. 4626 posts · Joined 2005. #2 · Aug 16, 2006. Dan, The markings have nothing to do with choke. The 76 indicates that you have 3 inch chambers (76mm). The 18.3 is the bore diameter in millimeters or about .721 inches. Italian (and many European) bores are pretty tight, I think it has to do with the fact that they still use felt and ...We would like to show you a description here but the site won’t allow us.But is there a standardization of choke markings ? Have several brands of shotguns -- both old and new, American and European, and with fixed-chokes and screw-in chokes. When glancing at the choke markings, can't remember whether more *asterisks means tighter or more open chokes. Is the marking pattern consistent for all shotguns - …About 40 percent of a shell’s total pellets will fit in a 30-inch circle at 40 yards without constriction. You will want to keep targets close with an open choke; within 25 yards is ideal. At 25 yards, you will have a 40-inch spread with a cylinder choke. Open or Cylinder Chokes have no constriction at all.What do the markings on chokes mean? Markings on chokes indicate the level of constriction, with designations such as Cylinder, Improved Cylinder, Modified, Improved Modified, and Full. 4. What is Cylinder choke? Cylinder choke has no constriction and provides the widest shot pattern. 5. What is Modified choke?Most double shotguns represented here. Double gun shotguns - Side by Side shotguns, and over under shotguns - Including drillings, double barreled rifles, SxS double rifles, combination guns. Makers - Darne, Merkel, Arrieta, Beretta, Browning, Holland, Purdey, Richards, Bernardelli, Parker, Fox, LC Smith, and most other double …Anyway, the "Record" shotguns shown in the catalogs were made by the company Scholberg & Delheid, owner of the trademark "Record" and owner of the trademark "S & D". ... Have yet to get SxS's down. Chokes are per barrel markings, .025" and .040", when I did manage to get on the birds, they dusted. I'll probably open them …May 2, 2024 · The constriction of a Benelli choke tube can be determined by the markings or notches on the end, which indicate its level of tightness. Can I use lead shot with all types of Benelli choke tubes? Most Benelli choke tubes are suitable for use with lead shot, but it’s important to verify this information with the specific choke tube in question. CZ 1012 G3 12 gauge: interchanges with Trulock’s CZ II style. (Flush choke length 2.750 in.) CZ 620 20 gauge: interchanges with Trulock’s Benelli Mobil style. CZ 628 28 gauge: interchanges with Trulock’s Beretta Mobil style. CZ Bob White: interchanges with Trulock’s Beretta/Benelli Mobil style.Jul 10, 2020 ... I've recently seen that there was some folks interested in learning more about shotguns and what role the choke has in how the shotgun ...6534 posts · Joined 2013. #9 · Jan 5, 2021. And just to note, before someone states the above specs are SAAMI and "do not apply" to a gun manufactured in either Belgium or Japan, where CIP reigns, the CIP specs for a 12-gauge barrel are 18.2mm+0.7mm, so 18.2-18.9mm. Which, math says are 0.71653" to 0.7440944".The tighter the choke the heavier the radial forces, the tighter the pellets are squeezed together so the pattern holds tighter over a longer distance. Conversely, the less restriction you have in the shotgun choke the more loosely the pellets are held together and the faster the pattern opens up. There you have it!Definition of Chokes. A choke is a tapered constriction of a shotgun’s barrel bore at the muzzle end. Chokes are used to shape the spread of the shot in order to gain better range and accuracy. They come in different types, each designed for a specific purpose in shooting. Definition of Skeet Shooting. A choke is the tapered constriction of a shotgun barrel’s bore at the muzzle end. The purpose of a choke is to alter the distribution of the shot as it leaves the firearm. The various size chokes constrict the barrel thus tightening the spread of the shot. Thus, the thicker the choke, the further and tighter the shot will travel. In the 1960s the Belgian Browning choke designations were: Full Choke *. Improved Modified *-. Modified **. Improved Cylinder **-. Skeet **$. Cylinder ***. By the way, this information is from the excellent Belgian Browning. reference book “The Browning Superposed” by Ned Schwing, Krause.Its kinda a quagmire the choke size thing. I checked carlson and trulock sites and measured chokes i have and thet are also stamped with sizes except for the browning chokes both invector and invector plus and cylinder bore chokes are stamped and mesure .630 skeets are .630 light mod has .012 construction and improved mod has .018 …You don’t say whether your gun is the A5 auto or a Superposed O/U. If an A5, the the choke marking should be on the left rear outside of the barrel. If a Superposed, then on the left side barrel’s breech. Browning choke markings are: * designates full choke (F). *- designates improved modified choke (IM). ** designates modified choke (M).Arikara. Correct. For a while in the Flues era Ithaca marked the chokes as a fraction -- 1/4. 2/4, 3/4 & 4/4. Mine is marked 2 on the right tube and 4 on the left. Pretty much standard choke selections for general hunting purposes. Thanks for the photo. your gun is apparently older than mine. My sn begins with 372XXX.Choke sizesare classified by both their measurement (to a thousandth of an inch) and by a special naming system. Choke measurements range from open chokes of around 0.725″ to 0.770″, to more restrictive chokes of around 0.600″ to 0.680″.Choke is a carefully measured constriction of the bore of a shotgun at the muzzle, designed to control the spread of the shot as it leaves the barrel. Hallowell & Co.'s descriptions of choke borings are determined by measuring with a bore micrometer, irrespective of any markings on the barrels. The internal diameter is measured four inches from ...The chokes in an L.C. Smith run parrallel for 1" and then taper 1 9/16" to bore size of .729-.732 in 12 ga. Also your gun was made in 1908, and after 1913 the 0 grade became Ideal Grade. The markings on the barrels are probably the barrel makers mark as the 0 grade had London Steel barrels or Damascus steel, I think Chain Damascus.Optima-Choke choke tubes will be marked Optima-Choke. The start of the threaded portion of the Optima-Choke tube is located a nominal 50.78 mm (2.00 inch) from the breech end of the choke tube. The length of the threaded portion is a nominal 15.9 mm (.625 inch). The major diameter of the choke tube thread is 20 mm (.787 inch).Weeds can be a nuisance in any garden or lawn. They can quickly take over and choke out other plants, making it difficult to keep your garden looking its best. Fortunately, there a...As with all other types of firearms in the United States, shotguns must be engraved with a serial number by the manufacturer. This serial number often provides information about th... As a general guide:-. 1 star or notch is Full choke. 2 stars or notches is Improved Modified or 3/4 choke. 3 stars or notches is Modified or 1/2 choke. 4 stars or notches is Improved Cylinder or 1/4 choke. 5 stars or notches is Cylinder or no choke, this tube may also have no markings at all. This all pales into insignificance when you look to ... Jan 17, 2021 ... Choke Tube Install and removal explained as well as purposes for different chokes.Aug 7, 2008 · The chokes in an L.C. Smith run parrallel for 1" and then taper 1 9/16" to bore size of .729-.732 in 12 ga. Also your gun was made in 1908, and after 1913 the 0 grade became Ideal Grade. The markings on the barrels are probably the barrel makers mark as the 0 grade had London Steel barrels or Damascus steel, I think Chain Damascus. The choke tube table above shows the diameters and constrictionsyou can expect for choke tubes and shotgun barrels for SKB 12-gaugeshotguns compared to common fixed choke shotgun gauges. Knowing the diameter of a choke tube is important in order to identify choketube constriction. The tighter the choke tube, the more constriction it has and the ...Frank Lopez. 4626 posts · Joined 2005. #2 · Aug 16, 2006. Dan, The markings have nothing to do with choke. The 76 indicates that you have 3 inch chambers (76mm). The 18.3 is the bore diameter in millimeters or about .721 inches. Italian (and many European) bores are pretty tight, I think it has to do with the fact that they still use felt and ...Jan 17, 2021 ... Choke Tube Install and removal explained as well as purposes for different chokes.A choke is the tapered constriction of a shotgun barrel’s bore at the muzzle end. The purpose of a choke is to alter the distribution of the shot as it leaves the firearm. The various size chokes constrict the barrel thus tightening the spread of the shot. Thus, the thicker the choke, the further and tighter the shot will travel.bigrobbierob said: The particular set of barrels I'm looking at are Ithaca import vintage and use Stars as choke markings. The Stars were used before the circles were implemented. Bigrobbierob, I would suggest never trusting the markings and have the barrels actually measured. Lots of altered Perazzi barrels out there.A choke tube wrench can be used to identify Stoeger chokes by removing the choke tube and inspecting the markings on the tube itself. 10. Do all Stoeger shotguns come with choke tubes? Some Stoeger shotguns come with choke tubes included, while others may require the purchase of compatible choke tubes separately. 11.Its kinda a quagmire the choke size thing. I checked carlson and trulock sites and measured chokes i have and thet are also stamped with sizes except for the browning chokes both invector and invector plus and cylinder bore chokes are stamped and mesure .630 skeets are .630 light mod has .012 construction and improved mod has .018 … What is a Choke on a Shotgun? A shotgun choke is the small metal tube that screws into the e