then again there is the possibility of simple marketing and "foolin" with the numbers. The Europeans tend to use the pounds feet (foot pounds ) energy out put rating, which is harder to fool around with. 12 ft lbs being the line between air gun and firearm. As an example the Beeman Kodiak .25 cal when loaded with a 21 grain pellet chronographed at 795 fps, same gun loaded with 31 ggrain pellet chronoghaphs at 642 fps. In both cases the gun still produces 28 ft lbs of pellet energy, but the heavier pellet shows a slower speed. Read some of the catalogues and they will give two velocities for each gun, one for standard weight pellets, one for the ultra light weight pellets. It's all marketing (at least in the catalogs) so why would a factory go to the expence of building different rifles for one or two states when they can design a test to have the same gun pass the states regulations??
