What is a Remington single shot 22 rifle?

Answer:
I think you are referring to what they call rolling block. without more clues it would be hard to guess what model. Possible and model 4 or model 6 would be common ones. Remington has pictures of both these models but unfortunately no others on their firearm history page here: http://www.remington.com/library/history/firearm_models/
First answer by Siliconsorcerer. Last edit by Siliconsorcerer. Contributor trust: 61 [recommend contributor recommended]. Question popularity: 3 [recommend question].