Why You Need a Smart Range Finder

Published on February 7, 2024
Duration: 7:06

This demonstration from Gunwerks Long Range University highlights the critical need for smart ballistic laser rangefinders when engaging targets at steep angles in mountainous terrain. Traditional methods like the Rifleman's Rule lead to significant errors, causing shots to impact low. A smart rangefinder, by applying precise cosine corrections based on integrated ballistic data, ensures accurate bullet drop compensation for ethical and precise long-range shots.

Quick Summary

Smart ballistic rangefinders are essential for angled shots in mountainous terrain because they accurately compensate for altered gravity. Unlike older geometry-based methods that overcompensate and cause low impacts, smart rangefinders apply cosine correction to bullet drop, ensuring precise shots.

Chapters

  1. 00:11Introduction: Why Smart Rangefinders?
  2. 00:29Physics of Angled Shots Explained
  3. 00:55Limitations of Rifleman's Rule
  4. 01:32Correct Angle Compensation Method
  5. 02:09Rangefinder Comparison Setup
  6. 02:49Test 1: No Angle Compensation Impact
  7. 03:29Test 2: Leica RangeMaster 1600 Results
  8. 04:22Test 3: Revic BR4 Smart Rangefinder Results
  9. 05:43Impact Summary & Precision Analysis
  10. 06:19Conclusion & Gunwerks Training

Frequently Asked Questions

Why are smart rangefinders crucial for angled shots in mountainous terrain?

Smart rangefinders are crucial because angled shots alter gravity's effect on bullet trajectory. They use integrated ballistic data and cosine correction to calculate precise adjustments, preventing the 'hit high' error common with uncompensated shots or the 'hit low' error from older geometry-based methods.

What is the Rifleman's Rule and why is it limited for angled shots?

The Rifleman's Rule, or Map Distance, calculates horizontal range. It's based purely on geometry and works for short distances and shallow angles. However, it overcompensates at longer ranges and steeper angles, leading to shots impacting low.

How does a smart ballistic rangefinder like the Revic BR4 improve accuracy on angled shots?

A smart rangefinder, such as the Revic BR4, integrates with a ballistic app to apply a cosine correction to the bullet drop. This accounts for the altered gravitational effect on angled shots, providing a much more accurate 'shoot to' distance or adjustment than older methods.

What are the consequences of not compensating for angled shots?

When shooting at an angle without compensation, shots will consistently impact high. This is because standard scope adjustments are set for flat ground, and the altered gravitational pull on an angled trajectory is not accounted for.

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