hells canyon

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    300 Win Mag Hells Canyon Terminal Ascent

    Has anyone tested the velocity with the 26 in Barrel Hells Canyon with 200 Grain Federal Terminal Ascent? I'm trying to determine the difference between the box velocity which is 24 in barrel and what it would be out of the 26 in.? I don't have a chrono to test so hoping someone else has? Thank you,