Performance. The . 22LR is effective to 150 yd (140 m), though practical ranges tend to be less. After 150 yards, the ballistics of the round are such that it will be difficult to compensate for the large "drop".

Minute of angle (MOA) is an angular measurement that represents 1/60th of a degree and refers to the accuracy of a rifle distributing groups of bullet hits on a given target.

While you may be able to hit targets beyond 400 yards, do not expect that your shots will be consistent. If you're hunting critters or varmints, you'll want to take them while the bullet still has some energy left in it. Your best bet is to stay in the 100-150 yard range for hunting.

The 1/4 MOA click moves the aiming point by 1/4 MOA irrespective of the magnification of the scope. Click price is the same at all magnifications. Click value is different at different distances. For example, 1/4 at 100m is 7.25mm, at 200m is 14.5mm and so on.