02 April 2013

Wow Gun Stuff

There's some amazing numbers associated with firearms.

5.56x45mm M193 ball, fired from an M16A1 has a muzzle velocity of 3,200 feet per second.

It's rifling twist is 1 turn every 12 inches.  Conveniently that's 3,200 revolutions per second or 192,000 revolutions per minute.

The rate of fire of an M16A1 is about 780 rounds per minute or 13 per second.

In 1/13 of a second the bullet will travel 246.15 feet, meaning there's a bit more than 82 yards between bullets firing fully automatic.

That does seem a long ways until you remember that the second bullet is 1/13 of a second behind the first one, so run fast to dance among them downrange.

2 comments:

  1. Most people never think of such things. Including me.

    ReplyDelete
  2. I'm a gamer. This sort of silly stuff comes naturally after a couple sessions.

    This isn't near as bad as the research project spurred by a first year electrical engineering student who claimed he was immune to lightning bolts because his suit of armor was a faraday cage.

    ReplyDelete

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