I have the Nikon P-22 on mine and I am very happy with it! See Nikon specs for it below:
BDC 150 Reticle: Developed specifically for the trajectory of the .22 Long Rifle Rimfire round, the new BDC 150 reticle offers shooters unique open circle aiming points 50 to 150 yards.
50-yard Parallax Setting: Eliminates parallax for precise shooting.
Precise, 1/4 inch @ 50 yd. Tactical Style Hand-turn Adjustments: Positive click reticle adjustments get you zeroed in quicker and maintain your setting—even with heavy recoil.
Waterproof/Fogproof: Nitrogen filled and O-ring sealed