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.22 ballistics truing tips?

StrayDog

At large
Supporter
Full Member
Minuteman
  • Nov 25, 2010
    1,036
    756
    ME
    Does the adage "true MV before 600y and BC after 600y" for center-fire apply to .22 ballistics?
    At what distance do we move from MV to BC?
    Asking because I'm finally shooting some .22 matches beyond 100y, out to 400y this summer.
    I've always just used .138 as a G1 for SK and Lapua, and wondering how I should true up beyond 100y.
    I have 50y zero, and 100, 200, 300 available to get data.
    TIA Hide!