logo
 

Go Back   HuntingNet.com Forums > Firearms Forum > Black Powder

Black Powder Ask opinions of other hunters on new technology, gear, and the methods of blackpowder hunting.

Reply
 
Thread Tools
Old 04-25-2007, 03:59 PM   #1
 
Join Date: Mar 2007
Location:
Posts: 164
Default Need some help

I need some help with figuring out my FPS/ Ftlbs energy@ 100 and 150 yards.

32" barrel/ 60 grains Triple 7, 225 grain aerotip powerbelt, 7300Ft Altitude. Im currently 1 to 1 1/2" high @ 100 yards. What im trying to find is the Ft lbs @ 100 and 150 yards to see how effective the bullet will be at those ranges. I just need a little thumbs up on if my powder charge will be good for deer at those ranges. I cant figure out how to use the program i book marked. Im thinking maybe 600 ft lbs @ 100-120?
WinchesterX150 is offline   Reply With Quote
Old 04-25-2007, 04:18 PM   #2
Boone & Crockett
 
cayugad's Avatar
 
Join Date: Feb 2003
Location: Wisconsin
Posts: 17,919
Default RE: Need some help

The .45 caliber Powerbelt has a BC of .211 and a velocity of 1905 fps with 100 grains of T-7 2f and 1925 with 100 grains of T-7 3f. So with an estimation of velocity at 1500 fps it is going to do the job on a deer but might be considered borderline (if you go by the numbers) by some and fine if you go by shot placement with others. I ran it through the Hornady Ballistics Calculator and it came up as marginal. I tried to transfer the numbers to this site, but they came out all in a line instead of the chart that was so easy to understand before.

Ballistics Calculation


Input Variables


Firearm type
Rifle
Sight Height
1.5

Bullet Weight (grains)
225
Ballistic Coefficient
.211

Muzzle Velocity (fps)
1500
Temperature
59

Barometric Pressure (hg)
29.53
Relative Humidity
78%

Zero Range (yards)
120
Wind Speed (mph)
0




Ballistics Table in Yards






POWERBELT 225 gr., .211 B.C.
www.hornady.com





Range (yards)
Muzzle
50
100
200
300
400
500

Velocity (fps)
1500
1364
1246
1074
968
893
834

Energy (ft.-lb.)
1124
929
775
576
468
399
347

Trajectory (120 yd. zero)
-1.5
2.5
1.8
-17.4
-66.2
-150.8
-276.6

Come Up in MOA
-1.5
-4.7
-1.7
8.3
21.1
36.0
52.8


The following table is provided as a "cheat sheet" that you can tape to your gun.


Ballistics Table in Yards






POWERBELT 225 gr., .211 B.C.
www.hornady.com





Range (yards)
Muzzle
50
100
200
300
400
500

Trajectory (120 yd. zero)
-1.5
2.5
1.8
-17.4
-66.2
-150.8
-276.6

Come Up in MOA
-1.5
-4.7
-1.7
8.3
21.1
36.0
52.8
[hr]

Ballistics Calculator v1.0
Hornady Mfg, Inc., by ARIS, Inc.

__________________
"Life should NOT be a journey to the grave with the intention of arriving safely in an attractive and well preserved body, but rather to skid in sideways, a total wreck, screaming Yahoo, with a big smile on your face."
cayugad is offline   Reply With Quote
Old 04-25-2007, 06:16 PM   #3
Giant Nontypical
 
sabotloader's Avatar
 
Join Date: Aug 2004
Location: Idaho
Posts: 8,788
Default RE: Need some help

FG

Using some of your numbers and some of Dave's this is what my program shows...

I used open sights, your given altitude, about 40f for temp, and Dave's 1500fps @ the muzzle.... Ignore that it says for a Hawkin 50 - I just called up one of my guns and plugged in your infrmation for a 45 caliber...

1.61"s high @ 100....







__________________
Keep on Shooting Muzzleloaders they are a Blast
sabotloader is online now   Reply With Quote
Old 04-25-2007, 06:20 PM   #4
 
Join Date: Mar 2007
Location:
Posts: 164
Default RE: Need some help

thanks! thats the chart i was lookin for. Thanks guys.
WinchesterX150 is offline   Reply With Quote
 
 
Reply


Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are Off

 

All times are GMT -8. The time now is 07:44 AM.