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Metalworking (rec.crafts.metalworking) Discuss various aspects of working with metal, such as machining, welding, metal joining, screwing, casting, hardening/tempering, blacksmithing/forging, spinning and hammer work, sheet metal work. |
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Threading the end of a tapered gun barrel
I want to make a muzzle break for my gun. I am just learning to run my
lathe. The question I have is how do I hold on to the tapered barrel so that I can turn the threads on the end of my gun barrel? Those with experience pleas help me. Thanks, KT |
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#4
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I do it by making a short steel bushing with a taper bore to match the
barrel contour about 3" from the muzzle. The bushing OD can be whatever is convenient, but make the wall thickness at least 1/4" . The bushing is seated firmly on the barrel on a piece of heavy paper cut to fit the bushing bore. The paper protects the finish and gives a good friction fit to the bushing. Then chuck the barrel threads in your 3-jaw (brass or aluminum shim stock over the threads). Put a live center into the tail stock and engage bore at the muzzle. Install your steady rest on the lathe bed but moved to a spot away from the muzzle. Run the lathe at about 250RPM and true up the OD of the bushing, taking very light cuts. Don't be alarmed if the barrel OD seems to wobble as many barrels are not perfectly straight and many have an exterior that is not concentric with the bore. Now move the steady rest to bear on the bushing and adjust to a close running fit with plenty of lubrication. Move the tailstock back and you now should have full access to the muzzle end for threading, recrowning, etc. The bore should appear motionless when the lathe is running. If it doesn't, you did something wrong. If you have a non-tapered barrel, a split(one side) bushing with a clamp screw will work the same. Just make the bushing long enough so the steady rest jaws don't have to ride over the screw hole. Randy wrote in message m... I want to make a muzzle break for my gun. I am just learning to run my lathe. The question I have is how do I hold on to the tapered barrel so that I can turn the threads on the end of my gun barrel? Those with experience pleas help me. Thanks, KT |
#6
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Tim Wescott wrote:
wrote: snip Some states don't allow threaded barrel muzzles, CA is one. Check state and local laws before doing it. I'm pretty sure that only applies to pistols in CA. I believe that a muzzle break threaded on to a long gun is fine. Just don't put a flash hider on a semi-auto with a detachable magazine. That makes it "evil". -G |
#7
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In article ,
Tim Wescott wrote: wrote: snip Some states don't allow threaded barrel muzzles, CA is one. Check state and local laws before doing it. Stan Gee officer, I thought that was decorative grooving. I thought it was for installing a 'mussle lock" -- Free men own guns, slaves don't www.geocities.com/CapitolHill/5357/ |
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