Ive been pushing my grendel past 800 yards for a while. I use the shooter app on iphone and Android. I have always had problems getting past 600 yards. Today i decided to change the one variable I hadn't yet. Locking in environmentals from my kestrel 4500 and ranging out to targets at 875 and 975, I started to lower the BC till it matched what I saw on the targets. I'm going to use a G1 BC of .475 for now. Tomorrow I will test it at 1050 yds and see if it still works, then make sure its still valid at middle distances. I really like the performance of the 123 amax, but need reliable ballistics data for it. My plan is to develop a banded G1 for it, and maybe a G7 if I can ever firgure out how to do that. So, I'd like the hoard's help to nail down the BC.
Please reply to this thread with the following info:
Distance target was shot.
Muzzle velocity
Come up (elevation) increase from zero
Zero distance
Elevation
Pressure
Temp
Humidity
Wind speed and direction
Barrel twist
Thanks!
Please reply to this thread with the following info:
Distance target was shot.
Muzzle velocity
Come up (elevation) increase from zero
Zero distance
Elevation
Pressure
Temp
Humidity
Wind speed and direction
Barrel twist
Thanks!
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