crowning/threading a rifle barrel

[d30carls]

I have a old nagant that I have decided I am going to sporterize I know some of you don't like the idea please don't be posting leave it stock because I am going to do it and you are just wasting your time I am wanting to cut the barrel to 16" thread it and add a muzzle brake I have heard a lot of talk about crowning the barrel to make sure it is straight and removing any burrs is there something special I need to do with this or can I just use a file I think I am making it more complicated than it has to be also threading the barrel for a muzzle brake is there anything special for that or someone on here close to central Indiana that could thread it cheap that's the one thing I'm the most worried about screwing up thanks for your info in advance

 

[sgreen3]

If your wanting it threaded you need to have it done at a reputable gunsmith's shop. An if you have it threaded you wont have to worry about truing or crowning the muzzle because it would be done my the machinist after the threading job.

 

[d30carls]

If your wanting it threaded you need to have it done at a reputable gunsmith's shop. An if you have it threaded you wont have to worry about truing or crowning the muzzle because it would be done my the machinist after the threading job.

Ok I wasn't sure because I saw online you could buy the die to thread it for 35 bucks so if it was going to be much more I was just going to do that don't have a lot of money to spend on it and I'm going to get a jmek scope mount and scope for it too

 

[Echelon]

ADCO will probably do it, they are always reasonable in cost, and do great work.
I've had them do work for me, and I was VERY pleased with the speed and quality of work.

 

[1911ly]

You don't want to try to do thread by hand. The barrel will need to be turned down to the correct size before it can be threaded. It needs to be done on a lathe. The threads are best done on the lathe as well. The machinist will do the crown at the same time. It will be worth the $$ to have a safe and neat looking job.

 

[chezuki]

I have a old nagant that I have decided I am going to sporterize I know some of you don't like the idea please don't be posting leave it stock because I am going to do it and you are just wasting your time I am wanting to cut the barrel to 16" thread it and add a muzzle brake I have heard a lot of talk about crowning the barrel to make sure it is straight and removing any burrs is there something special I need to do with this or can I just use a file I think I am making it more complicated than it has to be also threading the barrel for a muzzle brake is there anything special for that or someone on here close to central Indiana that could thread it cheap that's the one thing I'm the most worried about screwing up thanks for your info in advance

That is one hell of a "sentence".


Leave it stock.


The work really needs to be done on a lathe if you want it done correctly.
I returned to the thread to suggest you PM AllenM about it, but it seems he has already appeared.

 

[AllenM]

I can thread and crown for you. Take it apart and bring me the bare receiver and barrel $85.00

Avon

 

[d30carls]

I can thread and crown for you. Take it apart and bring me the bare receiver and barrel $85.00

It may b a while right now allenm u are a good 1.5 hour drive from me and I have to have surgery on my hand on Tuesday but I will definitely look u up in a few weeks

 

[ljk]

if you don't do the threading, it's a totally DIY job.

after cut the barrel, you can always use a sheet of paper and a machinist square to check the cut, file it straight slowly, it just takes time.

scrabing your cut ling by overlap wrapping the paper around the muzzle.

you don't need a lathe to re-crown the barrel, hand crowning has been around 100 years. all you need is a drill, dome head brass wood screw and lapping compound.


Gunsmithing - How to Re-Crown the Muzzle of a Winchester Model 60 By Larry Potterfield of MidwayUSA - YouTube

 

[1911ly]

AllenM is the man for the job! His work rocks! And the prices are fair.

 

[AllenM]

I can thread and crown for you. Take it apart and bring me the bare receiver and barrel $85.00

It may b a while right now allenm u are a good 1.5 hour drive from me and I have to have surgery on my hand on Tuesday but I will definitely look u up in a few weeks

When ever your ready