Infantry: June 27, 2003

Archives

Assault rifles and machine-guns are often used as wrecking tools in urban combat, mainly by firing a lot of bullets at one spot. The U.S. Army has conducted experiments and determined how many rounds of 5.56mm (M-16) and 7.62mm (machine-gun) rounds are needed to penetrate various materials, and then to blast out a 6-7 inch loophole that you can fire through. For example, an 8 inch reinforced concrete wall takes (on average) 35 5.56mm rounds to punch a hole through, and 350 rounds to make a loophole. With 7.62mm rounds, it takes about a hundred rounds to make the loophole. A cinder block wall, with one layer of brick on the outside, requires 60 5.56mm rounds to get through, and 250 for a loophole. For machine-guns, it takes 30 rounds to get the loophole, and 200 rounds to make an opening large enough for a man to crawl through. Troops are constantly reminded that 5.56mm rounds will go right through interior walls made of thin wood paneling, sheetrock, or plaster. It's also important to remember that hiding behind a car will protect you from 5.56mm rounds, but not machine-gun bullets (or any 7.62mm full power rifle bullets.) Same with wood frame building. Most 5.56mm rounds will be stopped, but not full power 7.62mm.

 


Article Archive

Infantry: Current 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 2008 2007 2006 2005 2004 2003 2002 2001 2000 1999 


X

ad
0
20

Help Keep Us Soaring

We need your help! Our subscription base has slowly been dwindling. We need your help in reversing that trend. We would like to add 20 new subscribers this month.

Each month we count on your subscriptions or contributions. You can support us in the following ways:

  1. Make sure you spread the word about us. Two ways to do that are to like us on Facebook and follow us on Twitter.
  2. Subscribe to our daily newsletter. We’ll send the news to your email box, and you don’t have to come to the site unless you want to read columns or see photos.
  3. You can contribute to the health of StrategyPage. A contribution is not a donation that you can deduct at tax time, but a form of crowdfunding. We store none of your information when you contribute..
Subscribe   Contribute   Close