German U-Boat Line-Thrower Rifle Conversions

Published on October 21, 2018
Duration: 8:09

This video from Forgotten Weapons, presented by Ian McCollum, details rare German U-Boat line-thrower rifles converted from Gewehr 98 actions. The expert analysis covers their unique design for managing extreme recoil from blank cartridges, specific markings indicating Mauser factory origin, and mechanical differences between vented and non-vented models. The focus is on the historical context and technical modifications for naval line-throwing applications.

Quick Summary

Ian McCollum of Forgotten Weapons examines rare German U-Boat line-thrower rifles, converted from Gewehr 98 actions. These unique firearms feature reinforced designs and extended stocks to manage extreme recoil from blank cartridges used for line-throwing between vessels. Markings confirm Mauser factory origin, with variations in barrel and bore dimensions noted.

Chapters

  1. 00:00Introduction to U-Boat Line-Throwing Rifles
  2. 01:15Recoil Management Design
  3. 02:00Muzzle and Bore Variations
  4. 02:50Action and Markings
  5. 06:25Mechanical Operation

Frequently Asked Questions

What were German U-Boat line-thrower rifles used for?

German U-Boat line-thrower rifles were specialized firearms converted from Gewehr 98 actions. They were used on U-boats to launch lines between vessels, facilitating the exchange of crews or supplies when direct maneuvering was not feasible.

How did U-Boat line-thrower rifles manage recoil?

These rifles featured an exaggerated length of pull and a heavily reinforced front end. This design was crucial for managing the significant recoil generated by firing blank cartridges, which was comparable to launching rifle grenades.

What are the key differences between U-Boat line-thrower models?

Two main variations exist: one with vent holes in the barrel extension and another without. They also differ in barrel length (10 inches vs. 10.5 inches) and bore diameter (2 inches vs. 1.75 inches), indicating distinct production or design iterations.

What do the markings on the U-Boat line-thrower rifles indicate?

Markings such as 'Gew. 98' and 'WAFFENFABRIK MAUSER A-G OBERNDORF A/N 1914' on the receiver indicate that these rifles were converted from Gewehr 98 actions by the Mauser factory in Oberndorf, Germany, likely in 1914.

More Gunsmithing & DIY Videos You Might Like

More from Forgotten Weapons

View all →