Feel da' power....they want to put this on ships. 
It goes at least 100 miles.
"A single megajoule is roughly equivalent to a 1-ton car traveling at 100 mph. Multiple that by 33 and you get a picture of what would happen when such a weapon hits a target."
http://www.foxnews.com/scitech/2010/12/10/navy-railgun-shoots-bullets-electromagnet/#ixzz17xA98cy3
As Tim Allen said, "More power!"
