Choose the appropriate bullet of your gun type for the ballistic coefficients.
.243 dia. (6mm) 107 gr. HPBT MatchKing
||.527 @ 2500 fps and above
.522 between 2500 and 1800 fps
.509 between 1800 and 1600 fps
.495 @ 1600 fps and below
For your convenience, here are Adobe Acrobat PDF versions
of both the Rifle And Handgun Ballistic Coefficients, that you can download
and print out to update your manual or use as a reference.
Adobe Acrobat PDF of Ballistic Coefficients