Louis Flobert filed his patent for the rimfire primed cartridge on July 21, 1849. His original cartridge was just a percussion cap with a lead ball inside of it. We’ve got a whole lot more about the 22’s development on our site.
Not to put Flobert’s idea down, but imagine inventing something so basic that would change the world so drastically? No single person will ever do it again. The future of invention belongs to groups of white coats.
I’ve heard that Russia uses steel cases to discourage their citizens from handloading. Making every round rimfire primed could effectively do the same thing, even if it is impossible. But how powerful would a firing pin have to be to work on a bigger round, like a 223, if it had rimfire primer? Could a firing pin theoretically make it through all that brass? Or is this idea ridiculous?