Originally Posted by DaddyRat
I figure I have a muzzle velocity around 1600 fps, any idea on the amount of drop from 50 to 75 yards?


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Here's a round-ball ballistics chart, put in your own values and get the answer to your question.

http://www.ctmuzzleloaders.com/ctml_experiments/rbballistics/web_apps/rb_ballistics.html

Sighted in to be "dead on" at 25 yard, using a .50 caliber round ball with a muzzle velocity of 1600 fps, it appears your rifle ball would drop 2.9 inches between 50 and 75 yards (3.8" - .9" = 2.9 inches). Muzzle velocity would drop 110 fps (1144 fps to 1034 fps) and bullet energy would drop 100 ft/lbs (545 ft/lbs to 445 ft/lbs).

Yds MV Engy Bul. drop
25 1336 743 0.0
30 1293 696 -0.0
35 1251 652 -0.2
40 1213 612 -0.3
45 1175 575 -0.6
50 1144 545 -0.9
75 1034 445 -3.8
100 954 379 -9.2
125 887 328 -17.5
150 828 285 -29.5

I hope this helps... smile


Strength & Honor...

Ron T.

It's smart to hang around old guys 'cause they know lotsa stuff...