I think the new SC/FN M-70's are OK, although I like the New Haven trigger, especially for a DG type gun. Other than a excessively heavy barrel contour, not much wrong with a N.H. M-70. And, those barrels shoot too good to replace. So lobbing them off to 20-21" seems to be an economical way to end up with a nice handling big gun.
That same barrel contour was used in their .458 and .416 versions. But, those two have a lot less steel in the tube because of larger bores. One size does NOT fit all, IMHO.
Oh well, they didn't ask me...
But, don't ya know, I'd a told'em...
DF