I just picked up a 77/22 all weather from my grandpa. Problem is that it has no scope rings, or sights. I thought i would be slick and steal the rings off my 243 until gopher season is done, but apparently ruger engineers saw me coming. The rings on the centerfires are two different heights, while the rimfire rings are same front and back. Anybody know of any sources for ruger style rings at a good price. Reproduction or original, i don't really care.