Gotta love the internet for some things.

A little more research associated the Rifle Ranch with the name of Jim Wilkinson, who actually passed away in 2001. His business was called the Rifle Ranch, located north of Prescott, Az., and he apparently was one of the bigger mail order suppliers of reloading components in the 1960's prior to the Gun Control Act of 1968. After that, his business focused mostly on retail sales. He also built custom rifles labelled RIFLE RANCH which, according to an article written about him and his passion for hunting, sold for up to $5000 at the time???

Interestingly, he was supposedly the tenth person to collect the "Super Slam" of all the world's wild sheep and was a real close friend of Jack O'Connor. Jack supposedly sold Mr. Wilkinson his 3rd 270 Win., a pre-war M70 customized with a "Lindon" stock and Stith scope/mount.

Interesting!!!

The only other reference to a Rifle Ranch custom is a M70 375 H&H a guy was asking about a few years ago. He didn't seem to get much in the way of information. I'm wondering if the 1625 is something to do with the address of the Rifle Ranch or maybe a serial # of sort... you'd think if there were 1625 rifles out there , you'd find a little more information.