Calico Reliability Testing: Round 4, the Saga Continues...

Published on September 13, 2020
Duration: 5:40

This guide details troubleshooting steps for the Calico Carbine, focusing on reliability issues. It covers thorough cleaning of the receiver and bolt assembly to address carbon buildup, installation of a replacement striker spring, and optimized magazine winding techniques. The information is presented by Ian McCollum of Forgotten Weapons, who is conducting extensive reliability testing.

Quick Summary

Troubleshooting the Calico Carbine in Round 4 involved thorough cleaning of carbon fouling from the receiver and bolt, and installing a replacement striker spring. Despite these efforts, failures to fire persisted due to light primer strikes, suggesting ongoing reliability challenges. Optimized magazine winding (18-20 cranks) is recommended to reduce friction.

Chapters

  1. 00:00Introduction and Background
  2. 01:25Cleaning and Inspection
  3. 01:45Magazine Winding Tips
  4. 03:29Range Testing and Failures
  5. 04:37Conclusion and Future Plans

Frequently Asked Questions

What were the main issues encountered during Calico Carbine reliability testing in Round 4?

Round 4 testing revealed multiple failures to fire within the first 20 rounds, characterized by light primer strikes. This indicated that the replacement striker spring, while installed, did not fully resolve the reliability problems, likely exacerbated by significant carbon buildup in the action.

How can Calico Carbine magazine reliability be improved?

To enhance reliability with the Calico Carbine's 100-round magazine, it's recommended to limit winding to 18-20 cranks. Exceeding this, up to the maximum of 23, can increase internal friction, potentially leading to feeding issues and malfunctions.

What maintenance steps are crucial for Calico Carbine reliability?

Thorough cleaning of the receiver and bolt assembly to remove heavy carbon fouling is critical. Following this, installing a correctly tensioned striker spring and optimizing magazine winding are key steps to ensure consistent performance.

What was the outcome of replacing the striker spring in the Calico Carbine?

Replacing the striker spring with a longer, new version from Calico engineers did not completely eliminate the failures to fire. While intended to address light primer strikes, the issue persisted, suggesting other factors like carbon buildup or magazine spring tension were still affecting reliability.

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