There are different pellets because of their many uses. In essence, everyone has their own reason for using an air rifle or pistol and therefore the pellets should be chosen accordingly. Here are just a few of the general types of pellets.

MATCH PELLETS
Match pellets are generally made to precise weight and dimensions. Their exact dimensions and uniformity make them the choice of marksmen and Olympic competitors. Any variances in shot placement can then be attributed to the marksmen .Because of the exact tolerances that match pellets incorporate in their manufacture; they come at a premium price. Match pellets are usually most effective in guns that have a velocity between 400/600 feet per second. This is the velocity seen in most match air rifles. Because of their lack of aerodynamic design they should not be used