Evano3,
The different number just show the different level of effect of air on the bullet at different velocity ranges.
I always pick the highest BC to use cause it makes me feel better and looks better when a computer code is run on it.
But then I go to the bench and shoot at 100, 200, 300, 400, 500. and now 650 yds and make an "real" drop chart. Then I don't care what the "actual" BC is.
Soon, a couple of months, I'll be out to 700 yds or so. Figure that's as far as I can expect to hit a paper target.
However, I do expect to get a 600 yd + yote this winter.LOL...
The ol' 270 is turning out to be a "practice gun" for when I get the serious LR rifle. [28 3/4" #7 or 8 Lilja in a tight chambered 338 RUM or 338-300 RUM don't know which quite yet)
BTW, a bunch of yotes are howling about 400 yds behind the house as I write this (0130 hrs) Gotta get me a night scope.
