@16bitnights Have you read Alexis #Gililand's #Rosinante books? Not so much a trilogy as 3 interleaved novels (looking a bit topical BTW)
There's a bit of discussion and business in there about #riflery in #microgravity.

Fire a rifle in near-earth orbit, and if you didn't hit anything the projectile will be back with you in half an orbit.
You might choose a projectile which evaporates in 40 minutes.