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Harry Bonar · September 7, 2008, 12:41 PM

Sir;
Weatherby Mark V thread are 16V , shank is .700 long and o.d. is 1.060.
I, at this time don't have the Vanguard/Howa thread without going to the shop and digging through my barrels. But, by checking your barrel against Mark V specs. you will be able to tell.
But there is much more work to be done to a barrel other than just screwing it up - the Mark V barrel has some special cuts ar the rear whereas the Vanguard, according to my memory, does not.
Harry B.

September 7, 2008, 12:41 PM	#2
Harry Bonar Senior Member Join Date: December 5, 2004 Location: In the Vincent, Ohio general area. Posts: 1,804	threads Sir; Weatherby Mark V thread are 16V , shank is .700 long and o.d. is 1.060. I, at this time don't have the Vanguard/Howa thread without going to the shop and digging through my barrels. But, by checking your barrel against Mark V specs. you will be able to tell. But there is much more work to be done to a barrel other than just screwing it up - the Mark V barrel has some special cuts ar the rear whereas the Vanguard, according to my memory, does not. Harry B.