it may work at times, but! if you chrony your load, and then change the MV to make your drops come out right, your windage adjustments will still be off due to the published BC being incorrect for your conditions. BC always outruns velocity at long range.
I put in my actual cold bore muzzle velocity, and work the BC from that, the published BC is what the makers got at the velocity they checked them at, at the BP they checked them at and some makers correct for sea level. of all the bullets I have tested the only bullet that the published BC matched my actual BC was the lapua 139 gr scenar, and it ain't worth a darn to hunt with. shoots awesome but performance is terrible.
RR
