Gunsmithing Swapping a barrel on an AW, any tips?

[Mr_Happyface]

Gents,

I'm taking off the factory .300 winmag barrel (unused so I'd like to keep scuffing nonexistent) on my AW and replacing it with a barrel chambered for 7mm LRM by GAP which should be arriving shortly.
I bought a Tubb barrel vise and an action wrench so I plan to wrap the barrel in thick rubber and wrench it off then replace it with the new one.


2 questions:

1) How many ft-lbs do I torque the replacement to?

2) What do I need to do to the replacement barrel to protect it and the receiver from rust? Do you typically degrease and lube the new threads with something?

 

[Mr_Happyface]

Nothing?

 

[Brasscow]

Lube the threads with any grease you'd like and torque the barrel to 100 ft-lbs. Really almost any torque value will work, but 100 is roughly equivalent to factory spec and easily repeatable.

 

[jerseymike]

not sure about the thick rubber, but business cards seem to do the trick.

 

[dieselten]

The thick rubber will prolly strip out long before you get close to 100 ft-lbs. get a correct fitting barrel block made of aluminum.

 

[bward]

I use painters tape.

 

[JayCarver]

https://www.youtube.com/watch?v=tkz6M0ObSbY