[quote=@Willy Vereb]
That makes absolutely no sense. Also rifle sized micro nukes are beyond even modern technology. Why the hell you even want them?[/quote]

Uranium is used to creates nuclear fission, this controlled nuclear fission energy is used as the substitute for the gunpowder giving the cartridge a huge amount of energy, far more than it would normally gain from igniting gunpowder, and so is fired at a far higher velocity. 

They're not nukes for a start. And to put it lightly, they're not beyond our technology, this little reactor isn't going to be able to power a city or anything, it will just be able to give the power for the firing of the rifle. So all you need is a source of radiation, in this case uranium which is handily abundant in my land, and some basic control rods to stop the chain reaction. The first nuclear fission reactor was built in 1942 I'm pretty sure, but it could have been built earlier fairly easily. All that happened was they then spent all their time and money looking at the bomb capabilities. The obvious risk of holding a small radiation producing stick of uranium is the inevitable radiation poisoning, but the sad truth is my nation nearly all already have it after the Fall. 

Why I want them is because A) It looks Hella nice and B) Granted you may have to stretch the imagination a bit, but not hugely and I like the idea of it! I could already write pages and pages about this nation and their interactions with their neighbours! And thanks [@ClocktowerEchos], but my nation is all burnt up and poisoned with radiation, it's either radiation powered guns or deadly sightseeing �