These high calibre low powered rounds come with light thin walled construction surrounding a reservoir that can be loaded with any number of chemical substances by a properly licensed retailer.
Splashy capsule ammunition costs 5c, 7c, and 11c (for 12mm, 12.7mm and 17mm, respectively) per round plus the cost of the substance to be loaded plus 1c for the loading.
Game Use:
12mm Capsule PEN 3 DAM 2 AD 0
12.7mm Capsule PEN 4 DAM 3 AD 0
17mm Capsule PEN 5 DAM 6 AD 1
If it causes a wound, the capsule delivers one dose of whatever substance it was loaded with.