Quote Originally Posted by GrahamAD View Post
And..... the world runs out to buy tin pellets which will do 970fps..... I think not!
If you have FAC air then there is seldom any point in having pellets that fly faster,

as I stated above as they go towards trans-sonic velocity the air flow (and sonic pressure wave) starts to cause flight instability that's why supersonic bullets are pointed with smooth sides, likewise supersonic aircraft.