How Accurate Is Bore Sighting A Red Dot

How Accurate is Bore Sighting a Red Dot?

Bore sighting your red dot sight might seem like a quick and easy way to get on target, but how accurate is it really? This method offers a decent starting point, but it's not a replacement for proper zeroing at the range. Let's dive into the accuracy, limitations, and best practices.

Understanding Bore Sighting

Bore sighting involves aligning the red dot's reticle with the bore of your firearm's barrel. This is typically done using a bore sighting tool, which is inserted into the barrel and allows you to visually align the sight. The goal is to get the red dot roughly centered on your target before you even fire a shot.

Accuracy Limitations

While bore sighting gets you in the ballpark, several factors limit its accuracy:

1. Point of Aim vs. Point of Impact

Bore sighting only addresses the alignment of the red dot with the barrel's path at the muzzle. It doesn't account for bullet drop, wind drift, or the inherent variations in ammunition and firearm mechanics that affect where the bullet actually impacts downrange (point of impact). These factors are significant, especially at longer ranges.

2. Tool and Technique Variations

The accuracy of bore sighting is also influenced by the quality of the bore sighting tool and the precision of the user's technique. A poorly made tool or improper alignment can introduce considerable error.

3. Sight Mounting

Even with perfect bore sighting, an improperly mounted red dot sight will lead to inaccuracy. Any cant (tilting) or misalignment of the mount itself will throw off the zero.

How Accurate Can You Expect?

You can generally expect bore sighting to get you within a few inches of your target at 25 yards. However, this is just an estimate. At longer ranges, the inaccuracy can increase dramatically. Think of it as a starting point that significantly reduces the number of shots needed during the zeroing process at the range.

Best Practices

While bore sighting is not perfectly accurate, you can improve its effectiveness:

• Use a high-quality bore sighting tool: A sturdy, well-designed tool will minimize errors.
• Follow the instructions carefully: Proper alignment is crucial.
• Check your sight's mounting: Ensure your red dot is securely and correctly mounted.
• Always zero your firearm at the range: Bore sighting is a preliminary step. Never rely on it alone for accurate shooting.

Final Thoughts

Bore sighting a red dot offers a convenient way to get your sight close to zero before heading to the range, saving you time and ammunition. However, it's crucial to understand its limitations and to always complete a proper zeroing process at the range to ensure accuracy and safety. Don't rely solely on bore sighting – it's a starting point, not the final destination.