another bullistics question

[Campbery]

Hi guys, I was out shooting my triumph this week and our range doesn't go further than 100yds. Got 1" groups with 100gr 777 and .45 Hornady sabots (SST). I was wondering what my ft.pounds andtrajectory would be at 150 and 200yds? Thanks very much.

[Underclocked]

.452 diameter bullet? Weight?

[Campbery]

sorry, .50 cal firearm and Hornady .45-250gr SST sabots

[Hammer49]

Here's a great resource for ballistic info.

http://www.hornady.com/ballistics/ballistics_calculator.php

[Campbery]

thanks for the link, but there are too many variables that I don't have access too, good tool though

[Hammer49]

Here's another one...I'm working on the exact ballistic info but this should get you very close (crossing it with the Hornady website). The big benefit here is the muzzle velocity. I match that with the SST ballistic co. (stated on their website site) and you're pretty much there.

http://www.barnesbullets.com/images/MuzzleloaderData.pdf

[Hammer49]

Final piece to the puzzle.

http://www.hodgdon.com/PDF/muzzleloading_manual_2008.pdf?CHECKBOX_1=on

[Campbery]

much appreciated, thanks again

[Hammer49]

Ballistics Table in Yards






250 gr., .21 B.C.
www.hornady.com





Range (yards)
Muzzle
50
100
200
300
400
500

Velocity (fps)
1835
1670
1518
1261
1084
975
899

Energy (ft.-lb.)
1869
1549
1280
882
652
528
449

Trajectory (100 yd. zero)
-1.5
0.8
0.0
-13.8
-49.5
-114.2
-213.2

Come Up in MOA
-1.5
-1.6
0.0
6.6
15.7
27.3
40.7This is with 100 gr of T7 loose. Personally, I would try 110 gr or 120 gr. Those are excellent loads and produce a flatter bullet at range (200 yds). As always though, please don't attempt a shot unless you have practices that particular distance.

[Hammer49]

Sorry that table didn't copy. Here's the link.



http://www.hornady.com/cgi-bin/ball10.cgi?firearm=Rifle&desc=&wght=250&am p;coef=.21&vel=1835&sight=1.5&temp=65& amp;barom=29.53&zero=0&wspd=0&calcbutt on=Calculate