RE: Does this gun/caliber exist??
Dont know if it was offered in the 742, but i do know that remington offers the 25-06 in a 7600 pump in a limted quanity gun. It is on their website under 2004 Limited Run firearms. It comes in a laminated stock version and only available through Grice Wholesale in Pa. So they may have at one time offered it in the auto rifle. Its a definete possiblity, since the 7400 has been chambered in several calibers that have since been dropped from that gun like the .35 Whelen and .280 Rem.