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If you know the muzzle velocity and your altitude I can run you one. I do have one for my son's Apex shooting 130gr of Pyro pellets that would probably be close. Here it is with altitude set to 500 feet and set up for a 5" point blank range sight in.

Name: .45 Cal, Honady PSP, 250 grn
Ballistic Coeff: 0.210
Bullet Weight: 250
Velocity: 2100
Target Distance: 155
Scope Height: 1.500
Temperature: 40
Altitude: 500

Ballistic Data
~~~~~~~~~~~~~~~
Range Elevation Velocity Energy ETA Drop Max Y 10mph Wind Deflect
0 yds -1.50 in 2100 fps 2448 fpe 0.000 sec 0.00 in -1.50 in 0.00 in
25 yds 0.36 in 2005 fps 2232 fpe 0.036 sec 0.25 in -0.54 in 0.11 in
50 yds 1.70 in 1913 fps 2031 fpe 0.074 sec 1.03 in -0.33 in 0.51 in
75 yds 2.43 in 1824 fps 1847 fpe 0.114 sec 2.41 in 0.04 in 1.29 in
100 yds 2.49 in 1738 fps 1678 fpe 0.157 sec 4.47 in 0.60 in 2.48 in
125 yds 1.82 in 1656 fps 1522 fpe 0.202 sec 7.25 in 1.37 in 4.04 in
150 yds 0.38 in 1576 fps 1379 fpe 0.248 sec 10.81 in 2.39 in 5.93 in
175 yds -1.91 in 1500 fps 1249 fpe 0.297 sec 15.22 in 3.67 in 8.19 in
200 yds -5.15 in 1427 fps 1131 fpe 0.347 sec 20.57 in 5.27 in 10.86 in
225 yds -9.53 in 1360 fps 1027 fpe 0.402 sec 27.07 in 7.24 in 14.10 in
250 yds -15.09 in 1298 fps 935 fpe 0.458 sec 34.74 in 9.60 in 17.77 in
275 yds -21.88 in 1240 fps 853 fpe 0.517 sec 43.66 in 12.39 in 21.86 in
300 yds -30.16 in 1188 fps 783 fpe 0.579 sec 54.04 in 15.69 in 26.47 in

The extra 20gr of powder will maybe add 30 to 50 feet per second to it, not enough to make any big changes to the chart.

I hope this helps.
 
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