.45 Colt +P - Sight in Distance

[Captains1911]

What is the better sight in distance for this round fired out of a 7.5" Super Redhawk with a 2x scope, 25 or 50 yards? Does anybody have any trajectory tables or graphs that compare the two? The purpose of the gun is for deer hunting with the maximum range of about 75 yards. Plan to use CorBon 300gr +P ammo. Thanks.

 

[Jim Watson]

I don't have the ballistics at hand, but if you are willing to take a 75 yard shot, then zero at 75 yards or not much less. The midrange trajectory height with a 75 yard zero will be less than the drop at 75 yards with a 25 or even 50 yard zero.

 

[velocette]

Here's a table using 1200 fps, 75yd zero

Range Velocity Impact Drop ToF Energy Drift
0 1200 -0.5 0 0 959 0
10 1176 0.43 0.18 0.03 921 0
20 1155 1.13 0.6 0 .05 889 0
30 1136 1.55 1.29 0.08 860 0
40 1118 1.71 2.24 0.11 833 0
50 1101 1.58 3.48 0.13 808 0
60 1085 1.18 5 0.16 784 0
70 1070 0.47 6.82 0.19 763 0
80 1056 -0.54 8.94 0.22 743 0
90 1042 -1.87 11.38 0.25 723 0
100 1030 -3.51 14.14 0.27 707 0

Shamelessly stolen from http://www.handloads.com/calc/

 

[Sarge]

I zero all mine to print on the top center edge of the front sight at 50 yards, and have had no trouble making shots to 75.