Threading a rifle barrel on a lathe. 015″ over finished barrel shank diameter. Take a piece of round stock (4"-6") and thread the end female to match the barrel. Dec 31, 2011 · WEBSITE:emmacreekgunworks. . Usually I sent them to a gunsmith. Use a lathe dog to pull the barrel and make a trueing cut on the tailstock end (breach end) and install a steady rest. But there are a lot of Apr 8, 2017 · Before I cut the new threads on the barrel, I have to locate the existing threads. i also included some tips on how to profile a barrel if you don't Sep 10, 2020 · 161K views 3 years ago. and they are made in the USA. This barrel chambering worksheet developed by Brownells, provides an excellent framework for calculating the dimensions of the tenon as well as the bolt nose recess depth. Dies and taps should be last resort, or reserved for non critical components. $35. 0106″ per inch of barrel. You can drive the barrel or the reamer and he shows set ups for both. I'm happy with the result. Sep 2, 2018 · The muzzle end of the barrel needs to be cut to receive the live center from the lathe. The Grizzlyis 12x36 and has the outboard spider and warranty. The bushing on the tool fits perfectly inside the bore of the barrel. Get a dovetail endmill, put in mill, cut the size needed and drift the sight in. Place the barrel into a tool holder. If you’re going to shoot suppressed, you absolutely have to have a threaded barrel. 578"x28, etc Speed: 70-1725 rpm (adjustable in 70, 200, 360, 600, 800, 1000 and 1400. Forum Statistics. People knock this method as well for inaccuracy as the rod may or may not give a true reading off the bore. No Power with the motor!! Sold the 7X10 and bought the Grizzly 7X12 to check it out. To do this, the lathe is configured for threading 16 teeth per inch, and the half nut is engaged. Make sure all the components are well-oiled with the cutting oil before starting. 00, plus shipping for a stripped barrel. Rifle barrel threading services. ” Thanks to Silencer Central’s state-of-the-art, in-house commercial lathe (CNC), firearm enthusiasts can ship their gun to Silencer Central or drop it directly at its Sioux Falls, S. This can be done using a variety of tools, such as a die or a tap. Then single-point thread that bad boy right there. Squaring the threading tool bit to the barrel. I then open the diameter of this hole with a 25/64″ drill bit. by GeorgeGaskill » Thu Oct 13, 2011 10:07 pm. Your threading will be coaxial with the bore as a result. The threading process is single point threading on a commercial lathe, concentric to the bore. Quantity. Spinldle bore is about the same on both. 075 for a Stolle and 1. Pre-shaped threading lathe bits ready to use. 1749″). A 4 jaw chuck lets the machinist/gunsmith center the barrel by using the bore of the rifle as the primary datum. Jan 10, 2017 · Find the centerline of the live center using an indicator. Finish threading in a vice using a bottom tap with the front ground off so it cuts full threads all the way. File it flat and square with the files and the square. threading is essential to have centritical threads for muzzle attachments to e Apr 21, 2024 · Welcome everyone to the TFB Armorer’s Bench! As mentioned in the little blurb below, this series will focus on a lot of home armorer and gunsmith activities. 475,589. Turn on the lathe and engage the half nut. If you cut the threads well with a die then they should be safe, i. When using a Bartlein #3 contour sporter barrel as an example, the following would apply for approximate barrel lengths that meet the +. g. BCA uses a DRO controlled ACER 1440 V Precision Gearhead Lathe to machine its rifles. I have learned some mistake I did an Aug 22, 2012 · Once we reach the proper depth of cut, we gently run the tool to give the crown a finished look. Then once that cures, they will chuck the barrel up into the lathe, and then thread the adapter bore-centric with your barrel so the threads are Apr 27, 2013 · The barrel bore is 0. With these features and more, Shop Fox Gunsmithing Lathe is the best lathe for gunsmithing, and I believe you are already Oct 21, 2012 · 4 jaw independent chuck is better. If your lathe is equipped with a tapering fixture, tapering is a breeze. Chambering barrels and typical gunsmithing work does not require a massive lathe. NOTE: All PTG Reamers and Cutting Tools are designed to work with petroleum-based lubricant. Insert a Crown Saver between the muzzle and lathe or mill center before fluting, chambering, polishing, or threading for a muzzle brake, and you can rest assured you won’t harm the rifling or ding the crown. Step 2: Determine the thread specifications. 50” and the plug 9/16” which give a shoulder width 1/32” wide. The tooling required will depend a bit on the lathe set-up method used to accommodate the barrel in the lathe for the threading operation. This is typically done by using a center punch to make a small indentation in the barrel. For long range accuracy, this thread joint must have a precise fit and perfect finish. 99. Indicator Rod - PTG made precision rod that is inserted into the bore and indicated to less that 0. Sep 9, 2019 · Lately, the biggest surge has been solving the muzzle threading challenge on stuff like the Thompson Centers, where the receiver is welded to the barrel. The result is identifying and correcting any errors that might appear as the work is being done. Start threading the breech in the lath with a standard tapered tap. Feb 3, 2014 · Different barrel makers have different guidance for how deep to flute (if to cut them at all). Oct 27, 2020 · I don't do barrel work on it but my shop purchased a TL1 for prototype work. (1) 22LR 1/2 x 28 RH THREADING KIT (4 PART TOOL KIT) Kit contains products you need to cut 1/2 x 28 RH threads on any 22LR barrel. 0001) of concentricity from chamber to muzzle on the rifles we build. The threading was cut by hand rotating the chuck. Jul 13, 2015 · The carbide cuts fairly well. 0106) and get a value of . This is how i turn and thread a barrel blank. The first step is to clean the barrel thoroughly and remove any oil or grease. 2M views 12 years ago. Feb 20, 2024 · Start by selecting the appropriate cutting tool for the thread you wish to create. Collet holder works best. 1 1/2" OD 1/2 x 28 Threading Die + 1 1/2" Die Handle + Cutting Oil + Thread Alignment Tool. PM-1440-2SM Model has 16 stepped speeds, 60-1800 RPM. Halogen work light. Showing 1 - 2 of 2 items. Make absolutely sure that the chamber is clean, and then insert a headspacing Go gauge. A common thread pitch for rifle barrels in the U. Drive Spindle: 1 Inch-8 RH TPI thread. What you can get is an acceptable result that probably won't be off so far as to cause a problem but it may interfere with the bullet exit from the bore and 1. 5 mm X22mm pitch thread barrel on the center and then chucked it up into the 4 screw chuck plate, dial it in on both ends, and chambered the rifle barrel. Jul 21, 2016 · Threading a rifle barrel and using lathe spiderhttps://www. We offer custom lathe and mill work, including barrel threading in all standard, common use thread sizes. "Crown" with the drill bit - preferably in a drill press, the barreled receiver set up perfectly parallel to the bit, but its a tiny cut that can be done by hand. Although I am no authority on drilling barrels, I think the 6000 RPM is mostly for accelerating the process. no way of truting it. minor diameter = . And I'd be willing to bet you have a 16" barrel, do not cut it down. This assures proper alignment between mating parts. Put the barrel in a lathe, cut down to . Add to cart. 100" rule: 1/2-28 = 26" max finish length This is a service offer to thread your barrel. Nov 13, 2016 · Hi, I'm ready to buy my 1st lathe. 1/2 x 28 is the traditional thread size for 22 LR and AR15 rifles. Jan 26, 2021 · This is for the first time I threaded my barrel by myself. 6166. Put the muzzle in a live center at the tailstock. Multi V flat drive belt setup (runs smoother than traditional V belts) Updated spider included for long through spindle work. 6 mm/min = 211 2/3 minutes Dec 2, 2023 · You need the guide to thread through the cutting tool itself and place it concentrically to the barrel. This barrel is a Shilen Match grade, 1:10 twist, stainless steel blank, from Brownells. Cut the thread relief. I am using a piloted 60-degree center cutting tool in a floating reamer holder. Sniper’s Hide is a community of Snipers of all kinds, focusing on long range shooting, accuracy, and ballistics. I skip some things such as timing, bore reaming, and some of the final fitting, but gives you a general Idea. What makes the G4003G a "gunsmithing" lathe is that it comes with features typically not found on standard lathes, such as the high-precision NSK bearings, large 1-9/16" spindle bore and a "spider" mount system. 000″ at the muzzle, I could have cut my flutes a little bit deeper. cnctoolexpress. Don't let the "smaller" size fool you – the G4003G 12" x 36" Gunsmithing Lathe is a serious metal lathe. Return the carriage to the starting position. You can't get that with a Spud in the bore. Oct 4, 2020 · The Armory. Price: $69. How to Thread a Rifle Barrel? Threading a rifle barrel is a relatively simple process, but it does require some specialized tools and knowledge. Bores seldom, if ever, are located “dead center” in a barrel. Thread the muzzle. Cut the recessed crown. I made a fixture and figured out how to probe the barrel so we can do it in the 5x. The Grizzly Gunsmith Lathe is setup to cut 28tpi . edit: According to the chart: major diameter = . 500 OD, and thread. 50. 5727. shopmasterusa. Jul 21, 2013 · Mill Files, rough and fine. 200″ away from the bore. You could chuck up the barrel and find that the bore is running off center . We are regularly able to achieve one ten thousandth (. In this case “Shilen” is the manufacturer, “308” is the bore diameter, “6” is the Mar 6, 2022 · Feed-in . Clean the threads. 6238-. He dials-in the barrel with a Grizzly G0509G 3-Phase Gunsmith Lathe. No lathe is going to be able to let you work on a 7" barrel through the headstock without some kind of extension or jig. The 60 Degree cutters Jan 25, 2014 · Jan 25, 2014. Use a file first to do most of the removal, then sand paper stepping down to fine emery cloth. basically the main two methods are referred to as ‘between Dec 28, 2010 · Internally thread one side for the chamber side and the other side for the barrel muzzle thread. May 17, 2013 · You can set the lathe up and it will give you a much better thread cut. I threaded this barrel with a spindle speed of 220 RPM. 22 Mag rifle. Barrel makers mark relevant information on the chamber end of the barrel blank. Just a quick video about crowning and threading. Use an indicator to ballpark this breech end of the barrel. All threading jobs are cut on a lathe removing the action & barrel from the stock of the rifle. 200 lower than stock and won't line up with your rear sight anymore. Many modern lathes for gunsmithing have similar dimensions. Jun 22, 2023 · We complete over 5,000 threaded barrels per year and will continue to offer the most innovative products and services in the game. Threading gun barrels is one of my primary uses for it. Feb 21, 2024 · What they will do is make the adapter, then thread the barrel small enough to have a good solid shoulder to install the adapter against with some sort of permanent adhesive or braze or silver solder. The finished 11 degree target crown. Check the thread pitch. 2. Dec 29, 2020 · The South Bend heavy 10 was and still is the go to lathe for gunsmithing. Our threading quality provides the best Barrel Tennon to receiver fit possible and our geometrically aligned compound and cross-feed Jan 25, 2015 · Barrels with curved profiles, such as sporter contours, are more challenging. Next, I will setup my Grizzly Gunsmith Lathe to cut the threads. As suppressor thread cuts vary widely, our Gunsmith cuts each These brass cones take much of the anxiety out of lathe-turning a perfectly good barrel with an already finished crown. Cut it with the hacksaw. These typically don't play well in most lathes, as you need a sewer pipe-sized spindle for it all to fit. Threads. Square. e. 30" barrel X 25. Cut the “step” on the muzzle end. Thread cutting is a pretty common application in any #machineshop. The 55 Degree cutters are designed to cut the true threads of the 98 Mauser. comhttps://www. The most important element that a lathe brings to gunsmithing is precision. Since this barrel has a . Designed to be used for already chambered blanks. I then take a 3/8″ drill bit and run it into the chamber end for ¾ to 7/8″. 13 years experience - licensed & Insured. The spider is especially Jan 11, 2012 · jtcustomknives. Gun Supplies thread rifle barrels on all makes and types of firearms. Feb 27, 2011 · Some fellows use a neet mandrel for this. Mar 4, 2011 · For short tapers and long bevels, a smooth, tight compound is a must. Jan 11, 2012 · jtcustomknives. 4. When ready to crown it, unscrew, cut off the threads and dress it up. Furthermore, the Aug 12, 2011 · Re: making gun barrels in the lathe. We thread your barrel to the thread pitch requested. To ensure thread/bore concentricity, the barrel threading must be done on a lathe, with the bore centered as if the barrel was to be re-crowned. 001 to . Dec 6, 2004 · The barrel is mounted between the dead center in the chuck and a live center in the tailstock. Clean up the shoulder. 0106″=. Nov 13, 2009 · Clemson swears by his lathe and the quality work it turns out--he teaches barrel work in a technical school gunsmithing program in his spare time. perform the barrel-threading job better than a general engineering shop as well, of course, as their prior experience . Once you have the right tool, mount it onto the lathe's tool holder and ensure it is secure. With the desired crown now cut with the 11 degree cutter, we use the de-burring tool on the pilot to break the outside edge of the barrel. Price, well ya get what ya pay for. The photos are examples of our work. I've backbored and done choke tubes by hand and on a lathe. Grizzly offers a lathe package specifically for gunsmiths. Finally, after threading, an 11 degree target crown is cut. 005 for a Hall. The Barrel is mounted in the lathe between centers so the thread cut aligns perfectly with the bore of the barrel. One of my biggest issues is the steady rest uses the same "ways" as the tailstock which stop well short of the headstock. Oct 29, 2018 · Measure the Ruger Precision Rifle threaded muzzle key dimensions (this is a copy of what Ruger does for the RPR) Turn the tenon down, 0. Its fairly straight forward and far more forgiving then rifle work. Feb 17, 2022 · Barrel threading is actually the process of cutting a specific pitch of threads onto the end of a gun barrel so that you can attach a variety of accessories, including but not limited to things like flash suppressors, muzzle brakes, and suppressors. Nov 28, 2023 · Barrel threads are usually cut to certain specifications so that many devices can work on the same rifle. A 3 jaw chuch "assumes" that the bore and barrel are in cylindrical alignment. It is not the smallest possible but it is half the size of some of the others on this thread. More specifically threading one using a combination of tools like an annular cutter and die with Oct 8, 2011 · I have a 5' long bed and sometimes I start to get very short on space for a rifle barrel, especially when chambering. The tool should have the correct shape and pitch for your desired thread. 96K subscribers. I would disagree about needing a lathe to do "safe" threading work. Apr 17, 2019 · The diameter of the barrel tenon at this point is 1. Feb 25, 2010 · I threaded a 1. It is better for precision work. 150″ to . Yet, watching the #lathe biting into the metal can be quite entertaining. What you can get is an acceptable result that probably won't be off so far as to cause a problem but it may interfere with the bullet exit from the bore and Mar 7, 2013 · The threading features on this lathe make it head and shoulders above the others. Sep 4, 2022 · Subtract that barrel thread-shank length from the receiver-to-bolt-face measurement and write it down. Finally, I’ll need to calculate the muzzle diameter. $87. 25. 1200 RPM would probably work, just take five times as long. Ruger 10/22 or Charger, 22LR, AR15, Smith & Wesson M&P 15/22 rifle, and more! You're building something great, we can thread it for you. 5x. Sight Soldering Fixture. 2K. We thread on a lathe and get 'em straight. I think the threads would have looked a little nicer with a higher spindle speed, but I don’t have a carriage stop on this lathe- threading to a shoulder at such a high speed is a little nerve racking. Gunsmith Gordy Gritters sets up a match barrel for chambering. Wh Feb 10, 2011 · The barrel thread joint connects the rifle barrel to the action. Jan 11, 2012 · jtcustomknives. 002 inch. The Kuhnhausen book has a few set ups towards the rear THE REMINGTON 870 & M1100/M11-87 SHOTGUNS - A SHOP MANUAL | Brownells. Would you expect a Surgeon rifle for the price of a Marlin? Jun 10, 2017 · This took all of 30 minutes to do. Single point threading is not an option in gun parts. No parts are included in this service. D. headquarters for threading. This 60 Degree cutter Bit is capable of consistently reproducing most after market Mauser Thread Patterns. Put the tool holder in the spindle and bring the z-axis down until the barrel sits in the live center. not let the barrel separate from the receiver. 4 mm/in /3. com Jul 1, 2019 · The heart and soul of our barrel threading center is the Haas TL-2 Toolroom Series lathe. 5 degrees. Barrel Threading Service including shortening and crowning if required. We use a special method to thread barrels that specifically leaves a washer/shim ledge at the base of the threads. Price: $59. Water-based lubricant can give acceptable results, however the life of the tool will be reduced. There are a number of similar sellers in your area that you can be assured of buying a quality South Bend lathe, such as Craig Donges on this BBS--he is located in Berlin Center, Ohio. 3/8 in 45 deg (standard) drill bit. Turn the muzzle to proper major diameter at the tailstock end of your lathe. PM-1440-2SM-V Model is Variable Speed, 30-2000 RPM (Adjustable while running) Heavier duty, taller cast iron base for more solid performance. Gunsmithing Tools / Jigs at Pacific Tool and Gauge. After manufacture, barrels are polished, to remove marks prior to finishing, so slight variations of the bore from center are inevitable. This design means pretty much anything you want to use the steady for needs to stick out of the chuck at least 14 inches. This was a light weight barrel #1 in 17 cal. 1749″ (16. The lathe is quickly run and shut off. Nov 3, 2020 · Honing the threading tool bit. 002 mm X 1200 RPM = 3. left hand or right hand. Take a scratch cut on the part without cutting fluid. Jan 1, 2015 · To determine the taper per inch, I simply divide this number by the length of the taper (. Cut the threads. For and AR, just machine internally for the barrel extension and thread the outside for a barrel nut. Print. Because the device can be controlled in terms of height and speed, the gunsmith can use the right tools for the job. Typical thread sizes are 1/2"x28, 5/8"x24, 11/16"x24, . Weight: 1050 pounds. 5″= . However, extra space is beneficial if you plan to work on rifle barrels because smaller lathes may tumble. Prepare the barrel. The bit is squared to the work using a 60 degree threading gauge. In this article, I am going to relay my experience threading a barrel without a lathe. £90 Mar 20, 2013 · 2. Disengage the half nut at the end of the cut, stop the lathe and back out the tool using the cross feed. 224″ bore diameter, and is 1. 0002". 6 mm per minute. Faceplate: 10 inches. Feb 18, 2024 · Position the cutting tool so that it is perpendicular to the workpiece surface and aligned with the desired thread start point. youtube. 3. More info. Screw them together and indicate in the chamber end like you normally would. Mar 6, 2022 · Feed-in . As a general guideline, they normally suggest staying a minimum of . Using the compound and cross slide, the threading tool is aligned with the existing threads (above). This American-made beauty uses precise computer programs to cut absolutely perfect threads again and again, something that is beyond the reach of most Mar 29, 2023 · You need the guide to thread through the cutting tool itself and place concentrically to the barrel. Face the muzzle end to length. I have seen some very poor jobs done to perfectly fine barrels and just wanted to share this information with you all Sep 13, 2018 · The right way to thread a muzzle is to indicate the bore and hold the barrel so it is concentric with the lathe spindle within about 0. Size: 12 x 36 inches. com/analytics?o=U#r=trafficsources,dt=ny,fs=15758,fe=16122,fr=lw-001,fb=0,rpm=a,rpg=7, Oct 2, 2013 · Muzzle brake installation on a rifle barrel. Once completed, we loosen the pilot and use our hands to remove it. This is . Spindle Taper: MT 5. The sharpened tool bit is installed with the crossfeed of the lathe set to 29. May 21, 2021 · 1- Precision. Running the lathe at a slow spindle speed, I cut the barrel to receive the live center. Apr 13, 2015 · Depending on the rifle brand, type of action, length of the barrel, size of the Lathe, size of the chuck and many more parameters, the action can be removed or doesn't have to be removed to thread the muzzle. You have to run it in a lathe to turn the barrel diameter down to the major diameter of the thread anyway, so let the lathe do the cutting for you while you have it chucked up. That being said, your front sight will be ~. For example, if you want to work with handgun barrels, even a smaller 7×12 lathe can be the best gunsmithing lathe. comTWITTER: @KingReloaderhttps://www. Apr 28, 2022 · Make sure the size of your lathe matches the size of your business and the guns you’ll be working on. #4. A expensive but a sure way to do it right . It is a decision that the smith needs to make based on many things, it is not a rule cast in concrete that it cant be done any other way. You will have to do some research on your end to ensure your barrel can be safely threaded for a suppressor at the finished length you request. The barrel can then be checked but if you've done everything correct, it is running true. Barrel threading starts at $85. This involves cleaning the barrel thoroughly and removing any obstructions. Use a thread gauge to accurately determine the starting point. Founded by Frank Galli in 2000, Sniper’s Hide has been offering informational videos, podcasts, and other support to its users in one location. Once on the barrel, begin the thread cutting process by turning in the direction of the thread pitch e. This will help to prevent the tap from binding. Since my blank is 16. 020″ longer than needed. You can easily feel when this tap hits the shoulder in the breech. But there are a lot of Nov 10, 2020 · Fast and professional barrel threading service. 175″/16. Jake VanAllen, CEO of Gun Vault shows great attention to detail and is not satisfi May 20, 2011 · Sniper’s Hide is a community of Snipers of all kinds, focusing on long range shooting, accuracy, and ballistics. Any thread configuration can be cut, but depending on the rifle and its use we commonly use 1/2" UNF, 5/8" UNF and M18 x 1. Check it out!To Dec 25, 2014 · Watch as we CNC mill a threaded barrel on a Ruger American . is ⅝x24. I can buy a new Grizzly G4003G for $3470 delivered or a lightly used Baliegh 13x40 with DRO for $3900. 5″ long, I’ll need to offset the end of the barrel . Choose Options. S. Many gunsmiths have used the 9" atlas/craftsman and south bend lathes with excellent results. Subscribed. Engage the half-nut lever to enable the carriage to move along the lathe bed. Feb 15, 2012 · If the blank is too short to fit, thread the muzzle end whatever thread your heart desires. Fully computer controlled, this lathe delivers precision that few barrel threading operations can offer. . Mark the location of the threads. Here are the steps involved: 1. $3900 is all I can spend for a machine. 1. Step 5: Engage the half-nut. 0001" runout with dial test indicators. Check out this link to see a few different examples of barrel contour specifications. zu yy af xt cx jy zx jz vm bt