When the Federal Government truly limits ammo (starving the sources, bank and online credit card refusals, cancel culture tactics, long order delays) they will allow us to have a little flag unfurl that says “Bang!” in place of a round being fired.
Carjacker with the .45 will have to say “Ow, ya got me” and fall over or it won’t be effective.
The ammo shortage is making people start looking at personal Gauss pistols (again). Here’s a sample of prior work: https://www.youtube.com/watch?v=xJVHFRfGxmA