The new bomb fuzing needs to be an option.

[Igo kyu]

Originally Posted by vparez

So if you line up correctly, and are in range, every gun round should hit bullseye? Every rocket should hit the same spot?

Every one that actually fires, should land near the target. How far from the centre of the target on average is called the circular area of probability, it varies between munitions, but if it is very large for a particular munition at a particular range, the military usually don't use that munition.

http://en.wikipedia.org/wiki/Circular_error_probable

The maths is quite scary, but the idea is simple, half the rounds from a given gun at a given range will land within a circle of a known diameter from where the barrel is aimed. The barrel may not be aimed at the intended target, or there may be other operator errors, but half the rounds will go into the circle the barrel is aimed at, the others around it.