Thread: Applied ballistics problems

Has anybody had issues with applied ballistics?
I bought a new phone recently and have noticed there’s big differences between the data on each phone.
I’ve checked my rifle and ammo data multiple times and it’s correct on both phones. Atmospheric data is the same on both yet it’s giving me almost 2moa difference for the 6.5prc at 600yards. The 7mm rum is just over 1moa difference at 600yds.

I’m hoping it’s something stupid I’ve just missed but I can’t see what it could be.

Help?!

Some things to double check off the top of my head.

Zero out all winds
Check AJ and spin drift settings are the same on both
Are you using a custom curve or BC. I doubt it but the custom curve may have been updated?
Did you calibrate mv on your original device?
Ensure readouts are given in Tmoa not Smoa

If you don’t figure out what the underlying reason is then you can force the new data to line up with your old data by adjusting muzzle velocity.

The other one is checking the ballistic models are the same, G1 or G7 are the common ones (basically G1 is traditional and flat base styles, G7 is a low drag model). I've done that before...