Firing an L39 Lahti 20mm antitank gun

Published on April 18, 2014
Duration: 0:20

This guide details the basic firing technique for the Lahti L39 20mm Anti-Tank Rifle, as demonstrated by firearms expert Ian McCollum. It covers preparation, loading, and firing, emphasizing the need for a stable platform and awareness of the weapon's significant recoil and muzzle blast. The demonstration highlights the raw power of this historical anti-tank weapon.

Quick Summary

The Lahti L39 is a Finnish 20mm anti-tank rifle, operating semi-automatically via a gas-operated system. Chambered in 20x138mmB, it weighs 109 lbs with a 51.2-inch barrel and uses a 10-round magazine. Firing produces significant recoil and muzzle blast, requiring careful handling.

Chapters

  1. 00:00Introduction: Lahti L39 20mm AT Rifle
  2. 00:04Live Fire Demonstration: Firing the L39

Frequently Asked Questions

What caliber is the Lahti L39 anti-tank rifle?

The Lahti L39 anti-tank rifle is chambered in the powerful 20x138mmB caliber. This ammunition is known for its significant projectile size and the substantial recoil it generates when fired from the weapon.

How does the Lahti L39 operate?

The Lahti L39 is a semi-automatic rifle that utilizes a gas-operated system. This means that after firing, the gases from the spent cartridge are used to cycle the action, eject the spent casing, and load a new round into the chamber.

What are the key specifications of the Lahti L39?

The Lahti L39 weighs approximately 109 lbs (49.5 kg), features a 51.2-inch barrel, and is gas-operated and semi-automatic. It feeds from a 10-round detachable magazine and fires the 20x138mmB cartridge.

What should a shooter expect when firing the Lahti L39?

Shooters should anticipate significant recoil and a substantial muzzle blast when firing the Lahti L39. The demonstration highlights a large dust cloud and forceful ejection of the 20mm brass casing, underscoring the weapon's power.

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