Whats the best way to check a B.C.

Discussion in 'Rifles, Bullets, Barrels & Ballistics' started by Topshot, Aug 23, 2010.

  1. Topshot

    Topshot Well-Known Member

    Nov 3, 2008
    With all the variations in B.C. from one bullet brand and type to another, whats the best way for a long range hunter to compare the B.C. of one bullet against another?

    Looking to reduce any errors as much as possible. So is it better to shoot and compare or just measure the bullets and calculate a new form factor?
  2. topbrass

    topbrass Well-Known Member

    Feb 24, 2010
  3. groper

    groper Well-Known Member

    Sep 2, 2008
    best way is to shoot it thru an accurate chrony at distance, say 1000yds. make a shield for it so you dont smash it etc.

    shoot a known low ES load thru the chrony at the muzzle and take an average speed, and set it up again at 1000yds and measure same load again. its an almost perfect measurement, only error being the accuracy of the chrony and the slight variation in your ES, although this would even out if you averaged it out over 10 shots say...