They are a plain jane Model 700 in a birch stock. I've had them in 243 and 30-06.
They were intro'd the same year the 788 was dropped...1984 IIRC. Remington figured out it was cheaper to pull 700 parts off the line before all the polishing and just give them a quick dip in the blueing tank and stuff them in a blind mag birch stock, than it was to build the 788 to meet that price point.