Hence once the BB hit your target, 1.34 Joules will be transfered to the target. There's a big difference in FPS but the kinetic energy it carries on flight will be the same, 1.34 Joules, regardless of what BB weight you use. 25g BB your gun will be shooting 340 FPS. This means that if your airsoft gun is shooting 380 FPS with a. Given everything the same in your airsoft gun (compression, spring, barrel length, etc), FPS is relative to the BB weight you are using but the kinetic energy it produces is always the same. Joules is the derived International System unit of kinetic energy. While it is true, the more important measure to look at is how much kinetic energy the BB has while it was leaving the airsoft gun's barrel. 28, and so on, because their FPS is lower with those types of BB weight. Some players try to stay away from heavier BBs like. 3048 MPS.Ī lot of airsoft players are very particular about the FPS of their BBs. Some countries using Metric System uses MPS which stands for Meters Per Second while other countries like here in the United States we use FPS which stands for Feet Per Second (English System) and as a rule of thumb 1 FPS =.
FPS is the abbreviation for Feet Per Second, it is a measure of velocity to gauge the speed of BBs as it leaves the barrel of your airsoft gun or in real steel lingo 'muzzle velocity'.
