Weird Slide Action Prototype Rifles

Published on November 28, 2018
Duration: 15:17

This guide details the disassembly and internal mechanics of an unidentified slide action prototype rifle, as presented by Ian McCollum of Forgotten Weapons. It covers accessing the internal linkage, understanding the bolt operation, and the cartridge feeding mechanism. The analysis highlights the unique design elements and potential inspirations from historical firearms, offering an expert-level look into prototype firearm development.

Quick Summary

Ian McCollum of Forgotten Weapons examines two unidentified slide action prototype rifles from Rock Island Auction Company. The finished model showcases a rotating locking bolt, a unique split elevator feeding mechanism similar to historical designs, and a single-stack magazine behind the trigger. The crude prototype shares the receiver design but features a forward magazine.

Chapters

  1. 00:00Introduction to Mystery Slide Action Rifles
  2. 01:20Mechanical Operation of the Finished Rifle
  3. 05:01External Features and Sights
  4. 08:03Comparison with the Crude Prototype
  5. 11:21Internal Mechanics of the Prototype

Frequently Asked Questions

What are the key mechanical features of the unidentified slide action prototype rifles?

These prototypes feature a slide action operating a rotating locking bolt. The finished version has a unique split elevator, a single-stack magazine behind the trigger, and a screw-adjustable rear sight. The crude prototype shares the top-ejecting receiver but has a forward magazine location.

How does the cartridge feeding mechanism work on the finished prototype rifle?

A single-stack magazine behind the trigger guard feeds rounds. A pusher bar moves cartridges forward onto a split elevator, which then lifts them into the chamber. This mechanism is compared to historical designs like the Henry and Kropatschek rifles.

What can be inferred about the caliber of the prototype rifles?

Based on the action length and .30 caliber bore diameter, Ian McCollum speculates that the rifles are likely chambered in .30 caliber, with a strong possibility of being .30-06 Springfield ammunition.

What distinguishes the crude prototype from the finished slide action rifle?

The crude prototype, while sharing the same receiver design, has a magazine located in front of the trigger, unlike the finished version's rearward placement. It also features a captive slide guard and a different cartridge feeding system.

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