I want to update this old thread with more data and my own range results. Heres the lastest data
https://docs.google.com/spreadsheets/d/1Hy81pdY9WnE3t8x1Ifu1LPB1hHUuHDewhEFCam3Am-c/edit#gid=0

I personally am getting 2720fps from a 1/8 twist 22in barrel from a 140gr Nos BT.