Choose the appropriate bullet of your gun type for the ballistic coefficients.
.224 dia. 90 gr. HPBT Match
||.504 @2200 fps and above
.511 between 1900 and 2200 fps
.500 between 1750 and 1900 fps
.467 between 1575 and 1750 fps
.400 between 1375 and 1575 fps
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