RE: Firing unused bullet/charge
First off, Welcome to the forum.
I do the same thing. The problem with a Renegade is, you have to pull the projectile or fire it. You could get a CO2 discharger and blow the load out at the end of the day. Or, you can take the risk of storing it in a manner that might make it fire the next day. But if you shoot it or blow it out, and then clean it and load it fresh, you always know that your in a better position then a rifle you are not sure will fire.
My friends complained about the same thing to me once. I told them that was the way it was. We even had a place at camp where we could discharge the guns. So we walked out of the woods, and fired the rifle off. Cleaned them, and then reloaded the next day.