RandallT,
The silent ball discharger works fine, if you're not able to shoot your load out at the end of the day. I haven't used mine in years, but they do come in handy once in awhile.
Like cayugad mentioned, it takes just about a whole bottle to blow out a charge. A word of caution: Blow the charge out into the ground, unless the ground is frozen. The bullet comes out of there at a pretty good clip and you don't want anyone to get hurt!