Sweet now when can i kill the shit out of people with it in every FPS game?

 Kojima is a visionary

Sounds sweet.

Although fairly useless in a zombie apocalypse. 

terrorists will be sh-tting there pants. Just hanging out and all of sudden bomb, body is just split in half.

wonder how much of a hole that gun leaves?

Man I'm proud to be on the big guys side. America only does everything, even shooting you with a railgun.

It should yield enough force to equal a cruise missle...So around ~450kg of high-yield explosives. The minaturization is immense, because the shell was probably between 3-5kg, yet should pack the same punch as the aforementioned cruise missle.

The huge advantage with the rail gun is the ammo - since there is no propellant, many more shells can be put onto a ship. For normal bombardment (like artillery), you could use very dumb ammunition, which could be stored by the thousands on a ship.

Speed is also a factor. At 33mj, the shell went Mach 7. At 64mj (the goal of the railgun project), it should go about Mach 8-9 if my math is correct. At such a speed, it will have huge advantages over cruise missles, as the chance to intercept is very unlikely.

AH yes Quake 2 and 3 come to mind. Awesome weapon in both games.

In a 97' game called Quake 2? Or how about that 99' game called quake 3?

That just sounds, well, impossible. If I was an engineer and the US military asked me to build a rail gun that can fire a non-explosive projectile to hit a target 100 miles away I would think they've gone mad. Yet, here it is.

Nah, first railgun prototypes have been assembled decades ago, you can make your own in garage. Anyway you wont' be able to carry this thing around in feasible future and not attached to a wall at the same time. Though ETC guns might come close to small arms in size and weight eventually.