Sounds like a fun hobby pursuit for those so inclined.
As for technology naysayers, look at all the high performance shotgun slugs out there using only 1980s/90s plastic technology. Take it a step into the 21st century with currently available materials.
As for "too much trouble", it's a hobby. There are still guys out there turning cases for 1850's designs on their mini lathes. Way "too much trouble", but it's their hobby.
