Dunno about efficient. I purchased some brass from Jimy here on the ‘Fire and some more from RCC (expensive), and a fella calls himself Traffer on Cast Boolets made a swage that irons out the wrinkles. It was not at all costly. There are some tools available from .22 Reloader that help, but mostly it’s a catalyst for ingenuity.
http://22lrreloader.com/design-details/
