Another theory I always liked is that the most of the bullets in the magazines are actually general issue (or whatever) but for say a heatseeker when its loaded into the barrel or bit it gets fired from a chip or some such gets attached that actually 'converts' a regular bullet into a heatseeker.
You can stretch this to incrediary - a small chemical package that reacts with the normal explosive in a regular bullet say. Hi-ex a charge is attached from the end of the gun.
Armour piercing and rubber are harder to explain as I'd guess they'd require a different physical bullet BUT they could then be in the other magazine?
You can stretch this to incrediary - a small chemical package that reacts with the normal explosive in a regular bullet say. Hi-ex a charge is attached from the end of the gun.
Armour piercing and rubber are harder to explain as I'd guess they'd require a different physical bullet BUT they could then be in the other magazine?