Solothurn S18-1000: The Pinnacle of Anti-Tank Rifles

Published on October 13, 2017
Duration: 9:31

The Solothurn S18-1000 was a powerful semi-automatic anti-tank rifle developed between the World Wars, chambered in 20x138mmB. While effective against early tanks like the Panzer I and II, its extreme weight (over 100 lbs) and bulk necessitated a two-man crew and limited its widespread adoption. Its unique features include a ratchet crank charging handle and a robust rotating bolt mechanism similar to the MG34.

Quick Summary

The Solothurn S18-1000 is a semi-automatic anti-tank rifle chambered in 20x138mmB, designed to counter interwar tanks. Despite its power, its extreme weight (over 100 lbs) and bulk required a two-man crew, and its effectiveness waned against later tank armor.

Chapters

  1. 00:00Introduction to the Solothurn S18-1000
  2. 01:04Historical Context and Effectiveness
  3. 03:34Mechanical Controls and Operation
  4. 04:40Internal Mechanism
  5. 05:54Live Fire Demonstration

Frequently Asked Questions

What caliber is the Solothurn S18-1000 anti-tank rifle?

The Solothurn S18-1000 is chambered in the 20x138mmB cartridge, also known as Long Solothurn. This powerful round was also used in other heavy weapons like the Finnish Lahti L-39 and German 20mm Flak guns.

What were the operational limitations of the Solothurn S18-1000?

The primary limitations were its extreme weight (over 100 lbs) and bulk, which necessitated a two-man crew. Its effectiveness also diminished against later, more heavily armored tanks developed during WWII.

How does the Solothurn S18-1000 operate mechanically?

It is a semi-automatic rifle using a short-recoil action. It features a unique ratchet crank charging handle due to its large recoil spring and a massive rotating bolt head with eight locking lugs, similar to the MG34.

Was the Solothurn S18-1000 effective against tanks?

It was effective against early interwar tanks like the Panzer I and II. However, its penetration capabilities struggled against the thicker armor of later Panzer III and IV models, limiting its long-term anti-tank role.

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