Hillbilly, Both rounds were rimmed and used roundnosed 45 gr inside lubricated bullets. The Winchester round had a velocity(20" bbl) of 1055 fps(117 fpe); the Remington version had a velocity of 950 fps(87 fpe). All this courtesy of "Cartridges of the World"(my old 3rd edition). Supposedly neither was much bettre than a 22 Long, though it seems the Remington version wouldn't even equal that (Remington ammo was crappy even back then). Their only purpose was to provide a non-jamming(due to unsuitable powder) 22 for those autoloaders. Once regular 22's switched over to only smokeless powder, both cartridges had outlived their purpose.
I thought, and still think, the the 22 WRF was one of the best small game cartridges ever brought out; with that 45 gr bullet at around 1450 fps(hi velocity version). Killed a lot of squirrels with it in that old Savage 24; which by the way was the first rifle/gun to be chambered for the 22 Magnum. Didn't really shoot a lot of 22 Magnums in the thing, until 22 WRF got hard to find/expensive.