catsmate
No longer the 1
- Joined
- Apr 9, 2007
- Messages
- 34,788
If rocket firing small arms, like the 70s AAI 12 gauge rocket machine -shotgun.By the time one is positing space marines, who is to say they're not built in orbit? And it's possible that the ammunition mass would be less than, say even caseless rounds, although I guess recoilless rifles* might be easier with chemical propellants.
*not artillery but actual infantry rifles