I've had 760/7600s in 223, 270, 308, 30/06, 35Rem, 358Win (35Rem re-chambered) and 35Whelen. Many of those have been 2 or 3.

~Small base dies are not required.
~Pumps will take surprisingly hot loads but I didn't push it.
~They are accurate, handle well and dependable.
~Small scopes in low Weavers work best. I like a VXIII 1.5x5
~I've had two cut back to 20" and find this length best, but wouldn't do it to a Whelen as it would devalue it.
~The 16" twist in the factory 35cal bbl will handle 250s.

~All of the 4 35Whelens I had would pop open the action and eject the spent case on firing from the bench with heavy 250gr loads. This is common and has been reported from other owners. Fear not when this happens.