Went out today with the new load to get a good 200 yard zero and shoot out to 760 yards with a spotter to get solid data.
Shot a .75" 200 yard 3 shot group at sight in then went out to 760.
During development, chrono'd at 3040 fps. Plugged that into Ballistic AE, shot at 760 and was a foot low?!?! Dialed up until I was making good consistent hits and elevation was right
Had to drop the velocity input into the program to 2725 to match actual shooting drops?!?!
When finished adjusting the program, used the data output to make first round hits at 220, 330, 430, 550, 650, 710 and 760 in that order!
Whatever works!
I wonder if the bullet's BC is being F'd up somehow because of the slow twist?
Had to hold slightly LEFT in wind from 1 O'clock too at longer ranges?!
Don't think I was canting either....
