Got a curly one for you. I am about to start reloading rubber shot in to a 12 gauge shell. We use it from choppers to muster wild cattle. The rubber balls we use are about OO in size and weigh aprox .4 of a gram. 9 or 10 balls to a shell which means that total shot weight would be around 4 or 5grams. What powder should I be using and how many grains of powder would I use. I need as much velocity as I can get out of them. The only info I can get for light loads are on the ADI website and they are for 24 grams which is 5 times heavyer. Thanks Patrick.