Shotgun choke machining

[jimipop1]

Hey folks, any of you ever tapped or cut the threads for a shotgun choke yourselves? Im trying to figure out how best to do this on my Mossy 500. Thanks for any help y'all give.

 

[Bobby Bailey]

The proper reamer and tap is the way to go. Colonial Arms, Brownells, Manson, PT&G along with others have good tooling.
Bobby

 

[Metalmann]

They may be expensive, but Bobby's right.

 

[personalsoln]

the best way is to go to Manson Reamers (google on internet ) They have the pilots, reamers and taps to do a great job. Good Luck

 

[westbrod]

Tooling is expensive - a reamer/tap set with a guide bushing for your barrell can be $250 to $300. Your barrell may also require a standard reamer to remove the old choke and reset the barrell diameter to cylinder bore. You then use the stepped reamer to open up the bore for the new choke threads and a thread die to cut the new choke threads for your choke mfg (Remington & Winchester have choke tube threads on the opposite end of the choke tube). The barrell wall thickness after all this machining is critical. The tooling mfg will specify the minimum wall thickness for the choke tubes you are installing. A barrell that is too thin can "shoot the choke" off the barrell. The good news is new tube installation can usually be done without a lathe, depending on your barrell. Also, tooling can be rented for less than half of the cost of buying new set. Good luck.

 

[personalsoln]

westbrod is right . the tooling is expensive especially when you are only going to do one. You would probably be better to go to a gunsmith in your area that does this type of work and just pay him to do it . it will be much cheaper...

 

[clearcaseman]

I have done literally hundreds of barrels and they are correct the tooling cost outweighs the cost of sending it off to have done. the ar15 forums have people there who will do it pretty cheap you just need to make sure your barrel outer dia is enough. all reamers will remove the old choke so that won't be a problem. I would recommend invector style tubes if possible but this requires a wide enough barrel. this is what remington and browning do. but with a mossberg you might have to go the truchoke path it is designed for smaller barrels which mossberg is known for. if mem serves you need .850 or .855 for invector. but who ever you contact can be more specific. but go to the ar15 forums and look in the exchange for services and look thru there you will find wood guys, coating guys metal guys and choke guys. and all of them have feedback so you know who you are dealing with.