Thread: Threading a noodle? Kimber barrel

Originally Posted by Hermitage

I had a .308 Kimber but did have problems.
My rifle's barrel diameter was .56” about 14,2mm, at the tip. But most suppressor manufacturers say that in order to support a 1/2x28 thread, you need a minimum thickness of .6”, (explains why Kimber’s factory thread is 7/16x28).
However, in order to reach .6” diameter, you need to cut the barrel to about 18” (no go).

With Kimber threading the barrel to 7/16x28, the tip of the barrel ended up with a wall thickness of about 1/16”. Pretty thin.
I ended up buying a thread adapter that increases the thread pitch from 7/16” to 5/8”. It's a more universally accepted suppressor thread and the adapter adds strength and rigidity to the barrel tip by relying on the threaded shoulder to support the weight of the suppressor rather than the 1/16” thick barrel tip.

The biggest 'problem' was that it was a .308...