Capsule collider not optimal for brass

I'm working on a VR MP Shooter, i'm getting the weapon system ready. Im currently working on brass.
The brass currently uses a capsule collider but that makes the capsule move forever, if i change to a box collider it does not look good either. Any tips, here is a vid of me firing a gun where brass is using capsule colider

Any tips on getting good looking brass that rolls on the surface like real brass?