What is the very fastest 6.5? The fastest one i know of is the 6.5 STW, but is there any, or could there be any that shoot the 120 or heavier bullets at close to or over 4000 fps in a 26 to 28 inch barrel, something practical for a medium weight LR hunting rifle? Has anyone done a 6.5 RUM Improved, a 6.5/378 Weatherby or 6.5/378 Weatherby improved, a 6.5 on the long magnum Lazzeroni or Laupa case, or anything larger? Are there any hunting bullets with relatively high BCs in 6.5 such as sirocco bonded or something like that that might old up to extreme velocities? I know it would be a barrel burner, but could this possibly be very accurate(maybe need a slower twist barrel??)? What kind of trajectory and wind drift would you get out of somethin glike this?