Muzzel brake and barrel threading

[Fire8523]

Hello all I have another quick question. I was looking at a muzzel brake for my 338 rum build and the barrel I have has a diamiter of .710 the muzzel brake I want is .812 but says its mad for rifles for a diamiter of .660-.812. The threads are 9/16-32 my question is can I just thread my barrel or does it need to be turned down? I have the proper tools to thread on the lathe but I wasn't sure about not turning down the barrel

 

[rcmodel]

.710" at the muzzle???
Mmmmmmmm?

Well it would have to turned down to .563" before you could thread it 9/16"-32TPI I guess.

rc

 

[dprice3844444]

http://www.gentrycustom.com/

 

[Fire8523]

It's a savage modle 116 and its a stainless steel barrel. The reading I got on my calipers was .710 from the muzzel even 1 3/4 in behind the muzzel because I was looking at the boss break because it did no require threading but they don't go up to that size. I guess I'm missing something here this is my first time with a muzzel break

 

[rcmodel]

but says its mad for rifles for a diamiter of .660-.812.

Well, my guess is .660" is as small as you can cut 9/16" threads on.

And .812" is the O.D. of the brake, so if you put it on a barrel that is .812" it would blend into the barrel perfectly.

If you put it on a barrel larger then .812", it would look funny because it would be smaller then the barrel.

rc

 

[Fire8523]

So if my barrel is .710 and the od of the brake is .812 I should just be able to thread

 

[rcmodel]

No, see post #2.

You can't thread a .710" barrel muzzle for 9/16" threads without turning it down to .563" first.

It's too big around to just thread it.

You have to turn down a .563" shank on the end before you could possibly thread it 9/16"-32TPI.

rc

 

[Fire8523]

Ok thank you

 

[BBBBill]

Before you start threading, indicated the bore centerline. It is often not exactly concentric with the OD. If you just indicate the OD, you may end up with the brake off center with the bore and possibly have problems with the bullet striking the brake.

 

[brickeyee]

Before you start threading, indicated the bore centerline. It is often not exactly concentric with the OD. If you just indicate the OD, you may end up with the brake off center with the bore and possibly have problems with the bullet striking the brake.

Before you cut it down indicate off the bore.

Deltronic pins for the win here.