A. Simply put, old paintballs are less accurate and more likely to break in your chamber or your barrel which gums up your entire gun. As paintballs age, their shells harden and become more brittle (use the
drop test to determine if balls are too brittle). As a paintball is shot, extreme stress is put on the ball and its shape is warped similar to how a water balloon loses its shape when it is thrown. A brittle shell will crack rather than mold into the new shape and will spill paint out into your barrel or chamber. Additionally, when balls age, they often develop warped shapes or dimples. Some warped balls will not fit into the chamber and will clog your gun until you can physically remove them, while others will simply not fly in a straight trajectory after they leave the barrel. Dimples will often allow air to rush around the paintball in the chamber when you fire, thus reducing ball speed and accuracy.
| 