The Importance of Parallax Adjustment in Rifle Scopes

When it comes to shooting with a rifle scope, accuracy is crucial. However, many shooters overlook the importance of parallax adjustment, which can lead to inconsistent shots and decreased accuracy. In this article, we'll explore what parallax adjustment is, why it's essential, and how to adjust your scope for optimal performance.

What is Parallax Adjustment?

Parallax adjustment refers to the process of adjusting the scope's line of sight (LOS) to compensate for the barrel's LOS. This ensures that the crosshairs are aligned with the target, resulting in accurate shots. When parallax is off, the crosshairs will not land on the target, even if you adjust or compensate for bore-sight axis or LOS.

The Problem with Non-AO Rifle Scopes

Non-adjustable (non-AO) rifle scopes can be problematic when it comes to parallax adjustment. These scopes are typically set for 100 yards and may not provide accurate shots at closer ranges. When you move your eye off-center, the crosshairs will move more than the target does, resulting in inaccurate shots.

Adjusting Parallax on Adjustable Scopes

On adjustable scopes, you can adjust the parallax by turning the dial to compensate for the difference between the bore axis and sight axis. However, this adjustment becomes increasingly finicky as you get closer to your target. It's essential to adjust the focus/parallax at your highest magnification setting for optimal accuracy.

The Connection Between Parallax and Focus

Many shooters assume that parallax and focus are interchangeable terms. However, they are not exactly synonymous. Parallax refers to the adjustment of the scope LOS to compensate for the barrel's LOS, while focus refers to adjusting the scope to see the reticle clearly. When the target is perfectly in focus, there will be no parallax error.

In conclusion, parallax adjustment is a critical component of rifle shooting accuracy. Failure to adjust your scope for parallax can result in inconsistent shots and decreased accuracy. By understanding how to adjust your scope's parallax and focus, you can improve your shooting skills and achieve more accurate shots. Remember to adjust your focus/parallax at your highest magnification setting for optimal performance.