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Joined: Mar 2011
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Originally Posted by sourdough44
Yeah, maybe, with the right shot. I'll stick with 110 grains of Blackhorn 209 out of my Knight though.


I was not impressed by 100 gr of FFG on a patched RB through the shoulder of a big antelope buck at 75 yds. Though he did find a place to hide and die after running a few hundred yds.

Years ago I know many elk guides spent a lot of time cursing those RB shooters subsequently to finding them in bulls that were not recovered in ML season. Of course, lately we have discovered the modern elk are not as tough as those years ago and can't really pack any amount of lead. A sign of the times I guess.

PS, I'm not referring to the results obtained by expert elk hunters who put the ball through both lungs and can follow one up.

Last edited by eyeball; 08/23/14.

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70 grains of powder should be fine. You run those heavy powder charges and I think you'll find that there's less accuracy, and will realize you're burning part of that powder down the barrel.


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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?


**************************************************************

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


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Thank you. I figure 75 yards is max and 50 is optimum and preferred.

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I once put a .490 patched ball into a 235lb buck broadside at 25 yards using 100 grains of Pyrodex RS. Ball went through both sets of ribs but not the skin on the far side skin. I still have the ball. I don't use .50 ball anymore for that reason.


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And to elaborate, the deer walked away like nothing had happened. I hit the liver and it took a while for the deer to finally stop and bleed out


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