I'm pleased to announce that AB Mobile (
https://play.google.com/store/apps/details?id=com.appliedballisticsllc.appliedballistics&hl=en) now has custom drag models for all 225+ bullets published in "Applied Ballistics for Long Range Shooting". Till now, the library of custom drag models only had about 10 of the most popular bullets.
What's this mean?
Custom drag modeling is most important for accurate trajectory prediction at long range where the bullet slows to transonic speed (below ~1340 fps). Above this speed, the G7 BC based predictions provide adequate resolution. However below 1340 fps, the actual drag of specific bullets can diverge from the G1 and even the G7 standard. More accurate fire solutions can be calculated with custom drag models. You can read more about this capability in the AB Mobile instructions: (
http://appliedballisticsllc.com/AB_app.htm) and even more in 'Applied Ballistics for Long Range Shooting' (
AB for Long Range Shooting).
The capability to model custom drag profiles is also provided in the new Kestrel with Applied Ballistics, now planned for production in mid May.
Sorry to say, no timeline yet for the iOS version of AB Mobile. It is planned, it will be done, it's just a matter of time; please bear with us.
Take care,
-Bryan