As any good reloading manual will tell you, the first successful (commercially at least) attempt to neck the .221 Fireball case down to .17 caliber was the .17 Mach IV. This cartridge was introduced ...
Perhaps you’ve seen one of those How to Reload pamphlets with a cover that shows Dad, Mom, Gramps, and the kids standing around a spotless bench, grinning from ear to ear with an enthusiasm usually ...