Firearms Facts Episode 19: 10mm Short and Wimpy

Published on April 2, 2013
Duration: 4:43

This entry breaks down the historical determination of shotgun gauges, clarifying the .410 as a caliber. It also provides a practical cost-saving tip for red dot sight users, suggesting the use of inexpensive CR2032 batteries sourced from LED tea lights, demonstrating significant cost reduction and extended battery life. The information is presented with practical insights and technical details.

Quick Summary

Shotgun gauges are determined by the number of lead balls of a specific diameter that equal one pound (e.g., 12 lead balls of .729 diameter for 12-gauge). The .410 is a caliber, not a gauge. A cost-saving tip for red dot sights involves using CR2032 batteries from inexpensive LED tea lights, offering extended life at a fraction of the cost.

Chapters

  1. 00:00Shotgun Gauge Determination
  2. 00:55Red Dot Battery Life Hack
  3. 02:16History of .40 S&W

Frequently Asked Questions

How are shotgun gauges determined?

Shotgun gauges are determined by the number of lead balls of a specific diameter that equal one pound. For example, 12 lead balls of .729 diameter equal a pound for a 12-gauge shotgun. The .410 is a caliber, not a gauge.

What is a practical tip for saving money on red dot sight batteries?

A cost-saving tip for red dot sights is to buy inexpensive LED tea lights from dollar stores. A pack of 32 batteries (CR2032) can cost around $10, making each battery approximately $0.33, significantly cheaper than single retail purchases.

Why was the .40 S&W developed?

The .40 S&W was developed from the 10mm cartridge because the 10mm was found to be too powerful for many law enforcement agents to qualify with. Smith & Wesson shortened the case to create the .40 S&W.

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