I finally got to sight in the rifle I built up a couple of months back (Bushmaster lower/24" stainless fluted A3 upper, J-P NM trigger, chrome bolt, Tasco 5-20X50 Harris bipod).  The rifle shoots pretty much dead flat at 150 yards with 68gn  Blackhills JBTHP.  What I am wanting to know is how much to expect 55gn and 68gn JBTHP to drop at ranges of 300 yds and 1000yds.(take into consideration the 24" heavy barrel)  I have access to the 300yd range but will probably have to wait for the next ETH outing for the 1000yd'er.  BTW, this is one SWEET shooting rifle.

www.lascruces.com/~jbm/ballistics/traj/traj.html