Cleaning Pellets and Baffles

cleaning pellets are a waste of time.
In particular, if you don't use a pellet in addition to the felt pellet(s) in a spring/gas piston gun you run the possibility of damaging the gun. Its just like dry firing it. the pellets weigh nothing. 
(come to think of it, maybe that is what some manufactures are shooting to obtain the exaggerated claimed velocity on some of the guns. :D )

Seriously, If you want to clean your barrel do it manually with a bore snake saturated with a solvent like Ballistol or equal.