1400 yards with a $300 40x scope?

Published on April 21, 2025
Duration: 1:27

This video evaluates the performance of a TPO KT scope at 1400 yards, specifically examining its optical qualities at various magnifications. The presenter details observations on color balance, edge sharpness, chromatic aberration, and light transmission from 5x to 40x power. The analysis highlights how magnification impacts image quality and the challenges of maintaining a usable eyebox at extreme zoom levels.

Quick Summary

The TPO KT scope was tested at 1400 yards, revealing good color balance and edge sharpness at 5x magnification. At 20x, color contrast diminished with a warmer tint. At maximum 40x magnification, light and contrast were significantly reduced, and the eyebox became very small, though a three-foot target was still identifiable.

Chapters

  1. 00:00Introduction: TPO KT Scope at 5x
  2. 00:155x Magnification Observations
  3. 00:30Increasing Magnification to 20x
  4. 00:4420x Magnification Observations
  5. 00:53Maximum Magnification: 40x
  6. 00:5840x Magnification: Eyebox and Light Loss
  7. 01:10Target Identification at 1400 Yards

Frequently Asked Questions

How does the TPO KT scope perform at 1400 yards?

At 1400 yards, the TPO KT scope shows good color balance and sharpness at 5x magnification. As magnification increases to 20x, color contrast decreases and a warmer tint appears. At 40x, light and contrast are significantly reduced, and the eyebox becomes very small, though target identification remains possible.

What are the optical characteristics of the TPO KT scope at high magnification?

At its maximum 40x magnification, the TPO KT scope experiences a notable loss of light and contrast. The eyebox also becomes considerably smaller, requiring precise shooter positioning. Despite these drawbacks, it can still resolve details like a three-foot sign at extreme distances.

Does the TPO KT scope exhibit chromatic aberration?

The presenter observed no noticeable chromatic aberration in the TPO KT scope, even at higher magnifications and in high-contrast areas where it is typically visible, such as where the treeline meets the sky.

What is the typical 'sweet spot' for scope magnification?

The 'sweet spot' for most rifle scopes, balancing magnification with image quality and usability, is generally considered to be around the halfway point of its magnification range. For a 40x scope, this would be approximately 20x.

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