I remember that run of 6mm Ruger American Predators well, as I was looking for a repeater in that chambering to go with my single-shot Cooper M22 at the time. Pretty sure the only new ones I saw for sale were by gun dealer Elk County Ammo and Arms, located in the same area as Grice’s (although I believe Grice did once offer a special run of pencil-barreled Remington 700s in blue laminated stocks.) That Ruger also came with an AR-style mag; not sure if it was modified or what length of cartridge that would have permitted.