Welcome! Here's a trajectory chart for the 350gr Hornady XTP, I get 2150fps with it out of a top load of Lil'gun, as you can see, the poor BC of the short, fat 350gr bullet really slows down fast, it's not much better than a round ball in a muzzleloader! 4" high at 100yds will be 3½" low at 200yds, 8½" low at 225yds and 15" low at 250yds.
Tim
http://findarticles.com/p/articles/mi_m0BQY/is_1_53/ai_n16866654/Trajectory for Hornady .500 dia. 350 gr. XTP-Mag at 2150 Feet per Second At an Elevation Angle of: 0 degrees
Ballistic Coefficients of: 0.145 0.145 0.145 0.145 0.145
Range Velocity Energy Drop Bullet Path
(Yards)(Ft/Sec) (Ft/Lbs) (inches)
0 2150.0 3591.8 0.0 -1.7
25 2014.8 3154.2 -0.25 0.6
50 1884.8 2760.4 -1.03 2.37
75 1760.4 2408.0 -2.42 3.53
100 1642.3 2095.6 -4.52 3.98 125 1531.0 1821.4 -7.42 3.63
150 1427.7 1583.7 -11.25 2.35
175 1333.1 1380.8 -16.15 0.0 200 1248.4 1211.0 -22.27 -3.57
225 1175.0 1072.9 -29.78 -8.54
250 1113.5 963.4 -38.87 -15.08
275 1063.1 878.3 -49.71 -23.36
300 1021.4 810.7 -62.47 -33.58