ok i kinda have an idea for a loader
what you need
1. a bottle ( gatorade, powerade, "pop" "soda" or "soda pop" bottle lol)
2. a very thin peice of wood that is about the about as wide as a paintball
cut a hole just before the nail (closer to the barrel) make sure it is bigger than a paintball... cut the very edge of the rim of the bottle and seal the two edges..... now stick the wood in and every time you want another ball move the wood in and out.
(heres a very bad pic of what i mean[used paint]) pm for more info or thorough explanation