Splat Marks the Spot! JT SplatMaster Ammo fills are specifically designed for quick and easy clean up with water, while being resistant to staining. The shells are made of gelatin – what does that mean? It means it is like a vitamin E pill and will essentially disappear with some water. After a day of playing JT SplatMaster, simply break out the hose and rinse off your targets and tada…clean. Only use JT SplatMaster Ammo with your JT SplatMasters. Get in the Game. IMPORTANT: Be sure to check out How to Store Your Ammo to ensure the best performance and keep your Ammo shooting straight.