How to Zero a Thermal Scope Fast & Easy

Published on June 20, 2026
Duration: 7:02

This guide details a fast and easy method for zeroing a thermal scope, primarily utilizing the bore-sighting technique. It emphasizes removing the bolt to look through the barrel and align it with a target, then using a heat source to make the target visible to the thermal optic. The process includes initial adjustments via the scope's menu and final fine-tuning at the range. The instructor notes that thermal scopes are not precision optics but are effective for identifying heat signatures.

Quick Summary

To quickly zero a thermal scope, start by mounting it and performing bore sighting by looking through the unloaded rifle's barrel to align with a target. If the target isn't visible, use a heat source like a heated metal block. Then, use the scope's menu for initial adjustments and fine-tune at the range with live fire.

Chapters

  1. 00:00Introduction to Zeroing Thermal Scopes
  2. 00:26Step 1: Mount the Thermal Optic
  3. 00:56Bore Sighting Through the Barrel
  4. 01:41Creating a Heat Signature Target
  5. 02:02Initial Zeroing Adjustments
  6. 02:47Range Zeroing and Fine-Tuning
  7. 03:16Achieving a Usable Zero
  8. 03:35Understanding Thermal Optic Limitations
  9. 03:50Tips for Faster Zeroing
  10. 04:08Conclusion and Call to Action

Frequently Asked Questions

What is the first step in zeroing a thermal scope?

The first step is to mount the thermal optic onto your rifle, replacing any existing optic. Ensure the rifle is unloaded and safe to handle before proceeding with any adjustments or sighting.

How can I make a target visible to a thermal scope if it's not emitting heat?

If a standard target like paper isn't visible to a thermal scope, you can introduce a heat source. Heating a metal or wood block with a propane torch and placing it in front of the target creates a detectable heat signature.

Is bore sighting recommended for thermal scopes?

Yes, bore sighting is a recommended initial step for zeroing thermal scopes. It involves looking through the barrel to align it with a target, providing a close approximation of the optic's zero before live fire.

Are thermal scopes considered precision optics?

No, thermal scopes are generally not considered precision optics. They are designed to detect heat signatures, providing a 'blob' of heat that can be identified and engaged, rather than offering pinpoint accuracy like some traditional scopes.

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