Custom 10mm Hi Point Carbine

Published on May 7, 2012
Duration: 2:05

This guide details the process of converting a Hi-Point Carbine from .40 S&W to 10mm Auto, a modification not typically found. It covers the potential mechanical challenges, such as recoil spring tuning to manage the blowback action's cycling speed and prevent bolt override. The process culminates in range testing to assess accuracy and reliability, highlighting the experimental nature of such custom builds. Instruction is provided by experienced firearms experts from Iraqveteran8888.

Quick Summary

Experts from Iraqveteran8888 showcase a unique custom 10mm Hi-Point Carbine, converted from .40 S&W. They discuss and demonstrate the challenges of its blowback action, including potential bolt override due to insufficient recoil spring strength for the 10mm Auto cartridge, while still achieving good accuracy.

Chapters

  1. 00:00Introduction to the 10mm Conversion
  2. 00:36Reliability and Mechanical Issues
  3. 01:40Precision and Range Testing

Frequently Asked Questions

What is a custom 10mm Hi-Point Carbine?

A custom 10mm Hi-Point Carbine is a modified Hi-Point Carbine, originally chambered in .40 S&W, that has been converted to fire the more powerful 10mm Auto cartridge. This is not a standard factory offering and involves significant gunsmithing.

What are the common reliability issues with a 10mm Hi-Point Carbine conversion?

The primary issue is often the recoil spring being too weak for the 10mm Auto cartridge's increased power. This can cause the blowback action to cycle too fast, leading to bolt override and feeding failures.

How accurate is a custom 10mm Hi-Point Carbine?

Despite potential cycling issues, the custom 10mm Hi-Point Carbine demonstrated good accuracy on steel targets during range testing, suggesting the 10mm cartridge itself is well-suited for a carbine platform when properly managed.

What is a blowback action?

A blowback action is a type of firearm operation where the bolt is not locked but relies on spring tension and mass to stay closed. The expanding gases push the bolt rearward after firing, cycling the action. It's common in smaller caliber firearms and pistol-caliber carbines.

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