The Coilgun

SA Coilgun also known as a Railgun, or Gauss Gun is a weapon system that uses caseless ammunition that has no propellant and is virtually silent because there is no Gunpowder or pressure. It fires using a series of electro magnetic coils around the barrel that operate in sync with infared sensors. A Round (pointed metal projectile with no casing) is pushed out of the magazine into the barrel tripping the first infrared sensor causing the first electromagnet to turn on it pulls the round foward rapidly but at the end of it is another sensor when the round breaks the beam the first coil shuts off to stop it from pulling it back and activates the second coil pulling it fowards faster and further along the barrel. The round will travel along repeating this cycle through as many stages as there are then it will leave the barrel.Other variations have all coils turned on when the first sensor is tripped so they all pull it foward. Same as the first type though as soon as a round passes an electromagnet it immediately shuts off so it will not slow the bullet. The bullets get pushed into the first stage by a small electric piston servo in handheld models but with the larger artillery cannons rounds are loaded one at a time so there is no need for this because there is no first sensor just an on button to pull it to the first sensor and second coil it then continues normally. The more coils and stages you have in a Coilgun the more powerful. accurate. and ranged it will be because there is more total power. The only one in military use today is a navy artillery Coilgun that fires sabots. When tested against 5 Thick tough AR500 armor plates it passed through with ease and continued for seven kilometers with little drop after passing through. The military has shown no intrested in gauss small arms however many smart people with the tools and knowledge build them for fun. And why wouldn't they! nothing could be more intresting check out the video below to see one of them.

Vancil A. 2014 Coilgun http://youtu.be/TWeJsaCiGQ0