100 years of Recoilless Rifles 57mm 75mm 105mm 106mm #military #history #edc #technology

Published on December 16, 2025
Duration: 0:25

This video provides a historical overview and visual comparison of four recoilless rifle calibers: 57mm, 75mm, 105mm, and 106mm. It highlights their development and use, particularly as man-portable anti-tank weapons. The 106mm model's designation is explained as a measure to prevent ammunition compatibility issues with earlier 105mm variants.

Quick Summary

Recoilless rifles, like the 57mm, 75mm, 105mm, and 106mm models shown, feature perforated casings that vent gases from the breech to neutralize recoil. The 106mm designation was a safety measure to prevent ammunition mix-ups with earlier 105mm variants.

Chapters

  1. 00:00Shell Size Comparison
  2. 00:1057mm Recoilless Rifle Firing
  3. 00:1275mm Recoilless Rifle Firing
  4. 00:16105mm Recoilless Rifle Firing
  5. 00:19106mm Recoilless Rifle Firing & Designation

Frequently Asked Questions

What is a recoilless rifle?

A recoilless rifle is a type of firearm that expels a projectile from a barrel, but unlike a conventional gun, it is designed to allow some of the expanding gases to escape out the rear of the weapon. This gas expulsion counteracts the recoil, making it possible to fire heavy projectiles from lighter weapon platforms.

Why was the 106mm recoilless rifle designated as such if it's actually 105mm?

The 106mm designation for the M40 recoilless rifle was a deliberate choice to prevent ammunition compatibility issues with the older M27 105mm model. This ensured that operators would not accidentally load the wrong ammunition into the weapon, which could have dangerous consequences.

What were the historical uses of the 57mm recoilless rifle?

The 57mm recoilless rifle, such as the M18, was primarily used as a man-portable anti-tank weapon. It saw significant service during World War II and the Korean War, providing infantry units with a means to engage armored vehicles.

How do recoilless rifle shells differ from standard ammunition?

Recoilless rifle shells feature a perforated casing. This design allows hot gases from the propellant charge to escape through the perforations and out the breech of the weapon. This controlled venting of gas is what neutralizes the recoil, a key characteristic of this weapon system.

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