I found an interesting program that calculates the ballistics of a round ball. I compared the results of the program to the very little CVA gives in their sidelock manual and the program does seem to be pretty close. Here is an example output that I did with the round ball size set to .490 and the point-of-aim to 80 yards.
0 Yds: FPS/fpe = 1800/1276.4 Drop = -1.0 in. Drift = 0.0 in. TOF = 0.000
5 Yds: FPS/fpe = 1739/1191.5 Drop = -0.6 in. Drift = 0.0 in. TOF = 0.008
10 Yds: FPS/fpe = 1675/1105.2 Drop = -0.2 in. Drift = 0.0 in. TOF = 0.017
15 Yds: FPS/fpe = 1615/1027.3 Drop = 0.2 in. Drift = 0.0 in. TOF = 0.026
20 Yds: FPS/fpe = 1559/957.0 Drop = 0.5 in. Drift = 0.0 in. TOF = 0.035
25 Yds: FPS/fpe = 1500/886.5 Drop = 0.8 in. Drift = 0.0 in. TOF = 0.045
30 Yds: FPS/fpe = 1445/823.1 Drop = 1.1 in. Drift = 0.0 in. TOF = 0.055
35 Yds: FPS/fpe = 1391/762.4 Drop = 1.3 in. Drift = 0.0 in. TOF = 0.066
40 Yds: FPS/fpe = 1342/710.0 Drop = 1.4 in. Drift = 0.0 in. TOF = 0.077
45 Yds: FPS/fpe = 1299/664.4 Drop = 1.5 in. Drift = 0.0 in. TOF = 0.088
50 Yds: FPS/fpe = 1255/620.9 Drop = 1.5 in. Drift = 0.0 in. TOF = 0.100
60 Yds: FPS/fpe = 1178/546.5 Drop = 1.3 in. Drift = 0.0 in. TOF = 0.125
70 Yds: FPS/fpe = 1118/492.3 Drop = 0.8 in. Drift = 0.0 in. TOF = 0.151
80 Yds: FPS/fpe = 1072/452.7 Drop = -0.0 in. Drift = 0.0 in. TOF = 0.178
90 Yds: FPS/fpe = 1034/420.9 Drop = -1.3 in. Drift = 0.0 in. TOF = 0.207
100 Yds: FPS/fpe = 1001/394.4 Drop = -2.9 in. Drift = 0.0 in. TOF = 0.236
120 Yds: FPS/fpe = 939/347.6 Drop = -7.5 in. Drift = 0.0 in. TOF = 0.298
140 Yds: FPS/fpe = 885/308.6 Drop = -14.1 in. Drift = 0.0 in. TOF = 0.364
160 Yds: FPS/fpe = 837/275.8 Drop = -23.1 in. Drift = 0.0 in. TOF = 0.434
180 Yds: FPS/fpe = 792/246.8 Drop = -34.8 in. Drift = 0.0 in. TOF = 0.508
200 Yds: FPS/fpe = 748/220.4 Drop = -49.5 in. Drift = 0.0 in. TOF = 0.586
220 Yds: FPS/fpe = 706/196.5 Drop = -67.6 in. Drift = 0.0 in. TOF = 0.668
240 Yds: FPS/fpe = 665/174.4 Drop = -90.1 in. Drift = 0.0 in. TOF = 0.756
260 Yds: FPS/fpe = 626/154.5 Drop = -117.1 in. Drift = 0.0 in. TOF = 0.849
280 Yds: FPS/fpe = 589/136.5 Drop = -149.3 in. Drift = 0.0 in. TOF = 0.947
300 Yds: FPS/fpe = 552/120.1 Drop = -188.5 in. Drift = 0.0 in. TOF = 1.053
320 Yds: FPS/fpe = 517/105.4 Drop = -234.7 in. Drift = 0.0 in. TOF = 1.165
340 Yds: FPS/fpe = 484/ 92.1 Drop = -289.8 in. Drift = 0.0 in. TOF = 1.285
360 Yds: FPS/fpe = 451/ 80.3 Drop = -354.7 in. Drift = 0.0 in. TOF = 1.413
380 Yds: FPS/fpe = 420/ 69.6 Drop = -431.9 in. Drift = 0.0 in. TOF = 1.551Caliber: 0.49 Inch Bullet Weighing 176.5 Grains
Aim Point: 80 Yards with 0 MPH Crosswind
Sight Plane: 1.0 Inches
Muzzle Velocity: 1800 fps
It seems like a point-of-aim at around 80 yards seems to make the round ball shoot pretty flat out to 100 yards, which would be about the farthest you would want to shot at a deer while hunting.
The round ball calculation program can be found for free here on this page.