The LAHTI 20mm Anti-Tank Rifle

Published on March 24, 2025
Duration: 13:56

This guide details the firing and handling techniques for the Lahti L-39 20mm anti-tank rifle, as demonstrated by Scott from Kentucky Ballistics. It covers loading, aiming, firing, and observing the weapon's significant recoil and muzzle blast. Scott, a recognized expert in large-bore firearms, emphasizes the importance of proper technique when handling such a powerful weapon.

Quick Summary

The Lahti L-39 is a Finnish 20mm anti-tank rifle firing the powerful 20x138mmB cartridge, delivering approximately 35,000 ft-lbs of muzzle energy, nearly triple that of a .50 BMG. It features a large muzzle brake, a crank-style charging handle, and a 10-round top-loading magazine. Firing from its bipod improves stability and reduces felt recoil.

Chapters

  1. 00:44Introduction to the Lahti L-39
  2. 01:34Physical Features and Design
  3. 02:12Action and Magazine
  4. 03:07Caliber and Ballistics
  5. 03:25Size Comparison
  6. 05:34Shooting Demonstration
  7. 09:09Muzzle Blast and Function Test

Frequently Asked Questions

What is the Lahti L-39 anti-tank rifle?

The Lahti L-39, nicknamed 'Miss Lottie,' is a Finnish semi-automatic anti-tank rifle chambered in 20x138mmB. It's known for its massive size, powerful muzzle blast, and significant recoil, making it a formidable historical weapon.

How does the 20x138mmB round compare to .50 BMG?

The 20x138mmB cartridge fired by the Lahti L-39 is substantially more powerful than the .50 BMG. It boasts approximately 35,000 foot-pounds of muzzle energy, nearly three times that of a .50 BMG round.

What are the key design features of the Lahti L-39?

Key features include a large muzzle brake, a wooden handguard, iron sights, a 10-round top-loading magazine, and a unique gear-driven crank charging system. It also utilizes sleds for snow transport which incorporate a fold-down bipod.

What is the recoil like when firing the Lahti L-39?

The Lahti L-39 produces significant recoil. Firing from the bipod offers much better stability and reduces felt recoil compared to firing from the sled assembly, which is still substantial.

Related News

All News →

More Tactical & Gear Videos You Might Like

More from Kentucky Ballistics

View all →