Was just playing Call Of Duty and it got me wondering. Thanks in advance.
In: Engineering
The metal in the gun is super dooper high grade steel so that it can withstand the big bang that happens inside the chamber that holds the bullet.
That means that the cartridge (bullet shell) can be loaded up with lots of gun powder and create a huge amount of pressure to blow the projectile (shooty bit) out the end of the barrel really fast.
So combine this with a long, thick barrel (which helps it stay straight and doesn’t go bendy when the bang happens) *AND* the correct rifling (the twisty bit inside the barrel to make the bullet go spinny spin) for long range shooting; you can get a bullet to travel very fast and straight for a long way.
For example; the [Browning M2](https://en.wikipedia.org/wiki/M2_Browning) …or a whole bunch of other high powered hunting/long range rifles
No electricity required in this one.
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