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?

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.

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....

RE: Need some help
 

thanks! thats the chart i was lookin for. Thanks guys.