If you chamber a laser bore sight, spin it 360 degrees, and watch the dot trace a 6-inch circle at 25 yards, you are experiencing laser runout (concentricity error).
Want to understand what actually determines bore sight accuracy? Read our guide to laser bore sight accuracy and precision.
This happens when a laser diode is mounted slightly off-center inside its housing. Because optical angles expand over distance, a fraction of a millimeter tilt inside the casing creates a multi-inch circle on your target.
Can You Fix It at Home?
No. Eliminating internal runout requires specialized optical alignment jigs and bench tools. Wrapping tape around the adapter or forcing the unit inside the chamber will not fix an off-axis laser diode.
The Solution: True Factory Alignment
Most budget bore sighters draw circles because they are mass-produced without individual optical calibration.
At Aerolastec, we solve this problem directly:
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Assembled & Calibrated in the USA: Every unit is hand-calibrated and individually tested in the United States.
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Zero-Runout Testing: Each bore sight is spun 360 degrees on an optical bench before packaging to ensure the beam stays locked on center.
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Precision Expansion Arbors: Our custom adapters fit snugly inside your chamber to prevent mechanical wobble.
A true bore sight should save you time and expensive ammo. Don't let a wandering laser ruin your range day. Get precision accuracy right out of the box.
👉 [Shop the Aerolastec X03 Green Laser Bore Sight]
👉 [Shop the Aerolastec X03 Red Laser Bore Sight]
👉 [Shop the Aerolastec X04 Professional Laser Bore Sight]
