Firearms Facts Episode 10: "Shotshells from Rifled Barrels"

Published on September 17, 2012
Duration: 5:25

This video provides an expert demonstration comparing shotshell patterns from smoothbore and rifled barrels using a Mossberg 500. Experienced shooters Barry and Eric from Iraqveteran8888 showcase how rifling significantly degrades pattern performance for both birdshot and buckshot at defensive ranges due to centrifugal force. The demonstration highlights practical insights into shotgun ballistics and effective ammunition selection.

Quick Summary

Rifled shotgun barrels are generally unsuitable for standard shotshells because the rifling imparts spin, causing pellets to scatter widely via centrifugal force. This results in erratic patterns, often a 'donut' shape, with no pellets hitting the point of aim, unlike the tight, consistent patterns produced by smoothbore barrels.

Chapters

  1. 00:00Intro: Shotgun Myths & Barrel Test Setup
  2. 00:46Birdshot Pattern: Smoothbore Barrel Test
  3. 01:35Birdshot Pattern: Rifled Barrel Test & Explanation
  4. 02:46Buckshot Pattern: Smoothbore Barrel Test
  5. 03:29Buckshot Pattern: Rifled Barrel Test & Verdict
  6. 05:04Mossberg 500 Reliability & Rapid Fire Demo

Frequently Asked Questions

Why are rifled shotgun barrels bad for shotshells?

Rifled barrels impart spin on shotshell pellets, causing them to scatter widely due to centrifugal force. This results in erratic patterns, like a 'donut', where pellets miss the point of aim, making them ineffective for defensive or hunting purposes with standard shotshells.

What pattern size can be expected from a smoothbore shotgun with birdshot?

At typical home defense ranges (around 15 feet), a smoothbore 12 gauge barrel using birdshot typically produces a consistent pattern around 10 inches in diameter, offering effective coverage without excessive spread.

Can you use buckshot effectively with a rifled shotgun barrel?

No, using buckshot with a rifled barrel is generally not recommended. The rifling causes the pellets to spin and spread out dramatically, resulting in a 'donut' pattern where the center is empty, rendering it ineffective for reliable hits.

What is the primary difference in performance between rifled and smoothbore shotgun barrels for shotshells?

Smoothbore barrels are designed for shotshells, providing tight and predictable patterns. Rifled barrels are intended for slugs and impart spin, which causes shotshell pellets to scatter excessively due to centrifugal force, leading to poor performance.

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