338 Lapua vs 300 Win Mag: CLOSER Than You Think On Mild Steel

Published on September 28, 2023
Duration: 8:55

This video provides an expert-level comparison of the .338 Lapua Magnum and .300 Winchester Magnum cartridges, focusing on their penetration capabilities against mild steel. The analysis, conducted by Banana Ballistics Host, utilizes precise measurements and chronograph data to demonstrate that while the .338 Lapua Magnum generally offers superior energy and penetration, the .300 Winchester Magnum performs surprisingly close, especially considering its lower energy output. The content highlights the importance of kinetic energy and sectional density in terminal ballistics.

Quick Summary

Expert analysis comparing the .338 Lapua Magnum and .300 Winchester Magnum against mild steel reveals surprisingly close performance. While the .338 Lapua (4,822 ft/lbs) generally penetrates deeper than the .300 Win Mag (3,507 ft/lbs), the .300 Win Mag achieved nearly 90% of the penetration depth on 5/8-inch steel, highlighting the importance of sectional density alongside energy.

Chapters

  1. 00:00Introduction and Cartridge Comparison
  2. 00:13Ammunition and Velocity Expectations
  3. 00:36Rifle Specs and Chronograph Testing
  4. 01:13Test Setup and Initial Steel Testing
  5. 04:161/2-inch and 5/8-inch Steel Testing
  6. 07:33Penetration Measurement and Conclusion

Frequently Asked Questions

How does the .338 Lapua Magnum compare to the .300 Winchester Magnum in terms of steel penetration?

In tests against 5/8-inch mild steel, the .338 Lapua Magnum penetrated 0.521 inches, while the .300 Winchester Magnum penetrated 0.468 inches. Despite the .338 Lapua's higher muzzle energy, the .300 Win Mag achieved nearly 90% of its penetration depth, showing surprisingly comparable performance.

What factors influence bullet penetration in steel?

Bullet penetration is influenced by several factors, including muzzle energy, sectional density, bullet construction, and impact velocity. While higher energy is beneficial, sectional density plays a crucial role in a bullet's ability to cut through material effectively.

What were the key specifications for the .300 Win Mag and .338 Lapua Mag loads tested?

The .300 Win Mag used a 190-grain Sierra MatchKing bullet with 3,507 ft/lbs of muzzle energy from a 24-inch barrel. The .338 Lapua Mag used a 250-grain Sierra MatchKing with 4,822 ft/lbs of muzzle energy from a 26-inch barrel.

Is the .338 Lapua Magnum significantly better than the .300 Winchester Magnum for steel penetration?

While the .338 Lapua Magnum generally offers more energy and slightly deeper penetration, the .300 Winchester Magnum performs remarkably well for its energy class. The difference in penetration against 5/8-inch steel was less than 10%, suggesting their performance can be closer than anticipated.

More Tactical & Gear Videos You Might Like

More from Banana Ballistics

View all →