Enough diameter to thread a sporter barrel?

[ninner]

Can you explain this a little further? Not sure I understand.

In this case you would cut the threads on the barrel long enough for the end of the barrel to bottom out in the brake instead of the shoulder on the barrel.
Another thing I've done is apply red loctite 271 and index it where it needs to stay, no shoulder needed of course you have to apply heat if you ever want to unscrew it this stuff wont let go until it hits 500 F.