Threading the muzzle on a 111 in 300 Win Mag?

[tobnpr]

I am a class 3 machinist...I think. Who am I kidding. It is possible to thread your barrell to 9/16-24 and bottom on the face of the muzzle. It could even be cut for a counter bore in the muzzle break . You could do a clamp on too. A true machinist can do it all including making the brake, for a price.

Perhaps he was referring to Class 3 threads, who knows...

What do you mean when you say "bottom on the face of the muzzle"??