Testing the SIG SPEAR in 6.8x51!

Published on August 30, 2024
Duration: 17:37

This review of the SIG SPEAR in 6.8x51mm highlights its impressive ballistics and energy output, exceeding 6.5 Creedmoor. While the 113-grain ball round did not penetrate a Level IV armor plate, it caused significant backface deformation. Accuracy with ball ammo was typical for military rifles, and recoil was comparable to .308.

Quick Summary

The SIG SPEAR in 6.8x51mm delivers impressive performance, averaging 3196.4 FPS and 2563.2 ft-lbs of muzzle energy with a 16-inch barrel. While it did not penetrate a Level IV armor plate, it caused significant backface deformation. Accuracy with ball ammo was around 4 MOA.

Chapters

  1. 00:00Introduction to SIG SPEAR 6.8x51
  2. 02:28Ballistics Gel Testing
  3. 05:38Body Armor Penetration Test
  4. 07:22Armor Test Results
  5. 08:48Velocity and Energy Measurements
  6. 09:53Recoil and Comparison
  7. 11:26Accuracy Testing

Frequently Asked Questions

What are the key performance metrics for the SIG SPEAR in 6.8x51mm?

The 16-inch barrel SIG SPEAR averaged 3196.4 FPS with 2563.2 ft-lbs of muzzle energy using 113-grain ball ammunition. Its recoil is comparable to .308, and it offers significantly more energy than 6.5 Creedmoor.

How did the 6.8x51mm round perform against Level IV body armor?

The 113-grain ball round from the SIG SPEAR did not penetrate the Shot Stop Level IV plate. However, it caused significant backface deformation, exceeding 2 inches, which could still result in serious injury.

What kind of accuracy can be expected from the SIG SPEAR with military ball ammunition?

With military-grade ball ammunition, the SIG SPEAR produced 5-shot groups ranging from 3.9 to 4.6 MOA at 100 yards. This is considered standard performance for military infantry rifles.

How does the 6.8x51mm cartridge compare to other calibers in terms of energy?

The 6.8x51mm cartridge delivers substantially more muzzle energy than calibers like 6.5 Creedmoor when fired from comparable 16-inch barrels. The tested SIG SPEAR produced 2563 ft-lbs compared to 1916 ft-lbs for 6.5 Creedmoor.

Related News

All News →

More Reviews Videos You Might Like

More from Military Arms Channel

View all →