Can any of you gentlemen tell me whether or not barrels are interchangeable between Remington Models 742 and 74 (with proper headspace confirmation of course)?
Jerry/AK

Jerry,

I've been looking into it since I asked this morning.

The main difference between the rem 742 and the 4/74/7400 is that Remington had used an "interrupted thread" design for the locking lugs on the 742.
this design used 12 small lugs, but they went to a three lug arraingment (eventually copied for the Remington 710)
on the later 4/74/7400

So if I swap the bolt with the barrel it should interchange.
The only issue is the price of a bolt

Mabey it'd be easier to track down a 35Whelen barrel for a 7400...

AllanD