:cb2: Mil-dot!!!!!
I had an extra Tasco mil-dot scope laying around, and when I bought my 77/22 Varmint I put in on the .22 until I bought another scope for it. Never did. The mil-dot is perfect for a .22.
.22 ammo is as different as people's faces. One brand my shoot high, and another shoot low. After firing a few of shots you can figure out exactly were that brand is hitting. Instead of re-zeroing your scope you just use what ever dot is closest to POI. Also, use different dots for differnt ranges. I have mine dead on at 50 yards. At 25 yards I use the dot just above the crosshairs. At 75 to 100, the dot below. It gives you a good reference point when "holding over" your target.
I think I got mine for $69, but what ever brand scope you get, these are great for a .22.