Going Over Questions And Setting The Record Straight On Height Over Bore.

Published on November 20, 2024
Duration: 11:25

This video addresses common misconceptions about sight height over bore, explaining that while it affects ballistic calculations and turret adjustments, it does not inherently change a bullet's ballistic performance or a firearm's accuracy. The instructor demonstrates how changing sight height in a ballistic calculator alters the required holdover (DOPE) but does not introduce spread or affect the rifle's inherent accuracy. The discussion emphasizes that optics enhance the shooter's capability, not the firearm's ballistics.

Quick Summary

Sight height over bore is a critical input for ballistic calculators, affecting required adjustments for zeroing and holdovers, but it does not change a firearm's inherent accuracy or a bullet's ballistic performance. Higher sight heights may necessitate angled optic bases like 20 MOA for sufficient elevation travel.

Chapters

  1. 00:08Introduction & YouTube Issues
  2. 00:41Previous Question: Dumbest Range Incident
  3. 01:01Buckshot Ricochet Incident
  4. 01:52Over-Under Shotgun Barrel Droop Myth
  5. 02:17Bullet Energy Retention Myth
  6. 03:01Addressing Sight Height Over Bore Comment
  7. 03:51Ballistic Calculator Demonstration: Sight Height
  8. 04:38Baseline Ballistics (2.75" Sight Height)
  9. 05:03Changing to 4.5" Sight Height
  10. 05:33Ballistics with 4.5" Sight Height
  11. 06:00Optics Don't Change Ballistic Performance
  12. 06:45MDT Video on Sight Height Accuracy
  13. 07:1720 MOA Base for Elevation Travel
  14. 07:54Resetting Calculator & Final Thoughts
  15. 08:42Next Week's Question: Angled vs. 12 O'Clock Red Dots
  16. 09:24Don't Tie Ego to Objects
  17. 10:24Credits & Backdrop

Frequently Asked Questions

Does sight height over bore affect a firearm's accuracy?

No, sight height over bore does not directly affect a firearm's inherent accuracy. While it is a crucial input for ballistic calculations and determining required adjustments for zeroing and holdovers, it does not change the bullet's trajectory or the rifle's ability to group shots.

How does changing sight height over bore impact ballistic calculations?

When you change the sight height over bore in a ballistic calculator, it alters the trajectory calculations. This means the required turret adjustments or holdovers for specific distances will change to compensate for the new sight-to-bore relationship.

What is the purpose of a 20 MOA base for an optic?

A 20 MOA base provides additional elevation adjustment for an optic. This is particularly useful for long-range shooting or when using a higher sight height over bore, as it allows the shooter to zero the rifle and still have ample elevation travel remaining in the turrets.

Can optics change the ballistic performance of a bullet?

Optics themselves do not change the ballistic performance of a bullet. Their function is to enhance the shooter's ability to acquire targets, measure distances, and predict impacts more accurately, thereby improving the shooter's overall effectiveness.

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