Gunsmithing Shouldered 700 Barrel with a Barrel Nut

[Kny88]

If I own a LH 700 300 WinMag SPS. Been looking to install a remage system, but Id like to keep the factory barrel as a training barrel to preserve the count on the Remage barrel. Not sure if it's possible cause the factory barrel is shouldered. If not, can I remove the barrel nut and simply reattach the barrel to the action?

 

[dimar1492]

The factory barrel will go back on just fine. Keep in mind that you are not changing anything about the action or factory barrel. The barrel nut is simply a means to headspace and preload the remage barrel.

 

[natdscott]

It would, though, perhaps behoove you to mark the position of the original barrel before you break it loose. Headspace and all that.

I am NOT certain how close you can expect it to be on re-install due to the thread locking compound used by Remington that you will have to clean out of everything. I THINK it should return, but being that I've never tried to re-install a factory tube that I removed, I am not certain.

Someone will be along shortly.

-Nate

 

[Mordamer]

I have reinstalled a factory barrel and it took a decent amount of torque to get the witness marks lined back up, but it went back exactly like it came off.

 

[Mordamer]

Also, you will need a witness mark on the factory recoil lug, the barrel, and the action to return them all back to factory alignment.

 

[Kny88]

Also, you will need a witness mark on the factory recoil lug, the barrel, and the action to return them all back to factory alignment.

So this is something where I am going to have to take the Remage nut off and lug off to swap the factory barrel back on? I don't mind doing it if it's going to be more reliable.

Could I reattach without as much torque from factory and still be okay? Like assuming I witness mark at factory and it's 80ft-lbs of torque. If I get it on at 65ft-lbs am I okay?

 

[GH41]

So this is something where I am going to have to take the Remage nut off and lug off to swap the factory barrel back on? I don't mind doing it if it's going to be more reliable.

Could I reattach without as much torque from factory and still be okay? Like assuming I witness mark at factory and it's 80ft-lbs of torque. If I get it on at 65ft-lbs am I okay?

Sounds like a lot of trouble to save buying another $550 rifle to train with.

 

[Sierra770]

If I own a LH 700 300 WinMag SPS. Been looking to install a remage system, but Id like to keep the factory barrel as a training barrel to preserve the count on the Remage barrel. Not sure if it's possible cause the factory barrel is shouldered. If not, can I remove the barrel nut and simply reattach the barrel to the action?

Have you explored the Bugnut system by Southern Precision Rifles. I know he can do you a pre fit barrel, but it might be worth seeing if he can re-cut your factory barrel to utilize the Bugnut system.

 

[Kny88]

Have you explored the Bugnut system by Southern Precision Rifles. I know he can do you a pre fit barrel, but it might be worth seeing if he can re-cut your factory barrel to utilize the Bugnut system.

Have not. The NSS and the West Texas Ordnance are the only ones I've looked at. I like the idea of a SwitchLug, and I may ultimately end up doing that. But we'll see. The NSS Remage setup appeals to me at the moment.

 

[Mordamer]

So this is something where I am going to have to take the Remage nut off and lug off to swap the factory barrel back on? I don't mind doing it if it's going to be more reliable.

Could I reattach without as much torque from factory and still be okay? Like assuming I witness mark at factory and it's 80ft-lbs of torque. If I get it on at 65ft-lbs am I okay?

You will have to swap back to factory recoil lug when going back to the factory barrel because the factory recoil lug will set your headspace back correctly. When torquing you could use less torque than factory but this will likely give you a longer headspace and you will need to run a no go or field gauge into the chamber to make sure your headspace is not excessive.

I estimate that the factory torque is way over 100 ft-lb. If you were to torque to 65 ft-lb your witness marks would be slightly off. May not be a big deal at all. Just check headspace and proceed.

 

[natdscott]

A little birdy told me one time that one of the preeminent and most-fanboi'd--and most precise--tactical rifle builders in the country tends to torque his barrels to what might be considered monstrous figures by most others. 100+.

They sure as hell shoot.

-Nate

 

[Kny88]

You will have to swap back to factory recoil lug when going back to the factory barrel because the factory recoil lug will set your headspace back correctly. When torquing you could use less torque than factory but this will likely give you a longer headspace and you will need to run a no go or field gauge into the chamber to make sure your headspace is not excessive.

I estimate that the factory torque is way over 100 ft-lb. If you were to torque to 65 ft-lb your witness marks would be slightly off. May not be a big deal at all. Just check headspace and proceed.

That you for the info. That's what I figured.