[L473ncy]

That's not exactly the case.... Tippmann has the TPX. Empire has an M4 and MP5 lookalike, Dye has some, I'm sure I've seen a JT marker that looks like a pistol or rifle etc.

And where does this magic number come from? If you got hit by a .68 cal. ball and a .43 cal. ball going at the same speed, which will hurt more? And do you honestly believe that fields will allow a "366" FPS .68 cal marker on the field? Velocity is only one part of the equation, mass is the second component which allows you to get an energy otherwise I could use .40g BB's to bring down the velocity of my rifles to pass chrono. There's a reason why everyone uses a standard .20g to chrono.