>Handgun reloaders have been using the same powders for over a hundred years in some cases, others are 80 or so years old, the newer ones are almost always knockoffs.
The kind of revolution I'm speaking of would require actual new propellants, e.g. based on RDX. It's possible, but requires a lot of R&D, so curently nobody bothers with it. But he was asking about the world of 2129, and maybe we will be through one or two world wars by that time.