Threading A Stock Barrel Question(s)

Wham-O

Wham-O

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I'd like to cut back a couple stock 10/22 barrels and thread the ends.

A machinist here at work said he would do it for me, but just needed the particulars.

Does anyone know:

A) What is the min. length you can cut them back to? (including thread length)

B) What is the standard thread type used?

C) What else I need to tell him to get the job done right? :D
 
I hate to say this, but I THINK threading a stock barrel is illegal. Purchasing a threaded barrel is different however. They usually come in 1/2 28" and I'm sure the factory would have turned them either on a brass pilot or between centers to keep the threads concentric to the bore and not the OD of the barrel.
 
MailleMas said:
I hate to say this, but I THINK threading a stock barrel is illegal. Purchasing a threaded barrel is different however. They usually come in 1/2 28" and I'm sure the factory would have turned them either on a brass pilot or between centers to keep the threads concentric to the bore and not the OD of the barrel.
Click to expand...

Actually, you are wrong. It's legal to thread a barrel. Cutting the barrel les than 18.5 inches is illegal. Buying one manufactured less than 18.5 is legal.

You can only cut the barrel down to a length of 18.5 inces. The standard thread is 1/2x28.
 
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CNADNSL8-5 said:
The standard thread is 1/2x28.
Click to expand...

The hole in the receiver is bigger then 1/2".
11/16", so, a standard 3/4-16 tap could be used.
The receiver will have to taped in a mill, after it has been properly indicated, the barrel (or a new barrel) needs to be threaded for 3/4-16 in the lathe.

*Sorry, did not read the post correctly*
 
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Al Flipo said:
The hole in the receiver is bigger then 1/2".
11/16", so, a standard 3/4-16 tap could be used.
The receiver will have to taped in a mill, after it has been properly indicated, the barrel (or a new barrel) needs to be threaded for 3/4-16 in the lathe.

*Sorry, did not read the post correctly*
Click to expand...

What? :confused:
 
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I've had several done by a machinist friend of mine. Very simple and easy to do. 1/2 x 28 is the best thread for most applications as it matches .223 AR flash hiders, etc...

If you want 16.5", find a barrel from a 10/22 CCR, or an aftermarket barrel, otherwise to stay legal you can only thread, not shorten a standard 18.5" 10/22 barrel.
 
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