I have this scope on one of my .22s and it's great. The next model up (don't remember which it is right now) has parallax adjustment which helps with the longer ranges. It's a little more expensive but not by much. I've got it on a Swede M38.Vortex Crossfire II 3-9x40mm Riflescope - Dead Hold BDC Reticle with Primary Arms Deluxe AR15 Scope Mount - 1 Inch | Primary Arms
$150 Vortex Crossfire II 3-9x40mm Riflescope - Dead Hold BDC Reticle with Primary Arms Deluxe AR15 Scope Mount - 1 Inch