I hope you are kidding? It is widely known that the remington 700 action is used in countless custom guns. A quick search on gunsamerica would probably turn up more than a few results.

But just to name a few famous gun makers who use the 700 in their guns.

Mark Bansner
David Christman
Hill Country Rifle Company
Bob Hisserich
Gene Simillion
Charlie Sisk
Virgin Valley Guns

I guess they just are not as "savy" as you and thats why they chose to use the remington 700 in their guns.