Boys Mk I Anti-Tank Rifle at the Range

Published on January 2, 2021
Duration: 6:36

This guide details the firing technique for the Boys Mk I Anti-Tank Rifle, as demonstrated by Ian McCollum of Forgotten Weapons. It covers loading procedures, proper sight alignment, and awareness of the rifle's unique recoil-reduction system and powerful muzzle brake. The instruction emphasizes utilizing the cheek pad and understanding the firearm's mechanics for a controlled firing experience.

Quick Summary

The Boys Mk I Anti-Tank Rifle fires the .55 Boys (13.9x99mm) cartridge, featuring a 946-grain bullet at 2500 fps or a 746-grain tungsten bullet at 3100 fps. It utilizes a bolt-action, an internal recoil-reduction system, and a 'cookie cutter' muzzle brake. Original .55 Boys rifles are NFA-regulated 'destructive devices' in the US.

Chapters

  1. 00:12Introduction to the Boys Mk I
  2. 00:28.55 Boys Ammunition Specifications
  3. 01:31Rifle Features and Loading
  4. 02:58Recoil and Muzzle Brake Performance
  5. 03:36Ergonomics and Design
  6. 04:18Conversions and Legal Status

Frequently Asked Questions

What are the key features of the Boys Mk I Anti-Tank Rifle?

The Boys Mk I features a bolt-action mechanism, an internal recoil-reduction system where the upper assembly recoils into the frame, a 5-round internal magazine loaded via stripper clips, offset aperture sights, and a distinctive 'cookie cutter' muzzle brake.

What ammunition does the Boys Mk I Anti-Tank Rifle use?

It fires the .55 Boys cartridge, which is equivalent to 13.9x99mm. Standard loads feature a 946-grain steel-core bullet at 2500 fps, while tungsten-core variants use a 746-grain bullet at 3100 fps for increased penetration.

Why are original Boys Mk I rifles considered NFA-regulated 'destructive devices' in the US?

Original Boys Mk I rifles are classified as 'destructive devices' under the National Firearms Act (NFA) because their caliber (.55 Boys, or 13.9mm) exceeds the .50 caliber threshold set by federal law.

How does the Boys Mk I manage recoil?

It employs an internal recoil-reduction system where the barrel and receiver assembly recoil backward into the main frame, significantly mitigating felt recoil for the shooter. The muzzle brake also aids in reducing muzzle rise.

More Training & Techniques Videos You Might Like

More from Forgotten Weapons

View all →