not going to point out the BAD things and I don't support .50cal I love .68 soooo:
1. more balls in hopper and pods, thus less weight per ball count
2. less pain at close range (opinion)
3. cost slightly less
4. more eff. on air
You can search on why its not as good as .68 cal
Been playing PB since late 1980s off and on.