Figuring out Vortex BDC

kdinkel

Member
Messages
43
I am sure this is simple for most of you, but I am trying to find the range that each reticle (Mil dot on my vortex 2x7 BDC) will be at on my muzzleloader. I had a friend work up the numbers below with my muzzleloader. I have a work up of drop, speed, etc . I know there is a way to figure out what the distance is at each reticle/mil dot without shooting it until I find the range it is on. Thanks for any help you can give! Here is the info I have:

2x7 Vortex crossfire Deadhold BDC

With Triple 7 powder (most accurate in my muzzleloader):
Name: 110gr Triple 7
G1 BC: 0.195
Muzzle Vel: 1920 f/s
Zeroed Rng: 100 yards
Bullet Wgt: 250 grains
Altitude: 7000 feet
Temperature: 40 ?F
Pressure: 29.53 in Hg
Humidity: 20 %
Wind Speed: 10 mph
Wind Dir: 03:00 O'clk
Range Slope: 0 deg
Sight Height: 1.5 in

The columns in the order listed
Range Velocity Energy Path Drift
Yards f/s ft-lb inches inches
0 1920 2047 -1.5 0
50 1771 1742 0.64 -0.57
100 1630 1476 0 -2.36
150 1499 1248 -3.91 -5.49
200 1379 1056 -11.7 -10.11
250 1272 898 -24.06 -16.31
300 1179 772 -41.8 -24.13
350 1103 675 -65.79 -33.56

With Blackhorn 209 (faster load)
Name: 110gr Blackhorn
Categ: Rifle
G1 BC: 0.195
Muzzle Vel: 2005 f/s
Zeroed Rng: 100 yards
Bullet Wgt: 250 grains
Altitude: 7000 feet
Temperature: 40 ?F
Pressure: 29.53 in Hg
Humidity: 20 %
Wind Speed: 10 mph
Wind Dir: 03:00 O'clk
Range Slope: 0 deg
Sight Height: 1.5 in

The columns in the order listed
Range Velocity Energy Path Drift
Yards f/s ft-lb inches inches
0 2005 2232 -1.5 0
50 1852 1904 0.52 -0.53
100 1707 1617 0 -2.22
150 1570 1369 -3.51 -5.18
200 1444 1157 -10.55 -9.56
250 1329 981 -21.77 -15.46
300 1228 837 -37.92 -22.97
350 1143 725 -59.83 -32.11
 
Is this what your reticle looks like? This was made with your first load.

70304mz1.jpg


2a0fcsk.gif
 
Thanks a ton. It is very similar, just hash marks instead of dots. I am sure it is the same. What app did you use?
 

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