I don't own but have shot a Benelli R1 in 30.06. Sweet shooting gun with very little felt recoil. Only drawback for now is that it's only available in 308 / 30.06 / 300. The barrels are also interchangeable.
In italy the Argo ( known as R1 in the USA), was for a long time not "available" in the shops in the 300Wm version.
I heard they had serious trobles with jams.
Probably it is due to excess of gas generated from this caliber which cannot be managed by the gas operating system which is taking the gas just a couple of inches out of the chamber.
The 308 and 30.06 work smooth though.