shooter app giving me weird solutions

Panther5547

Private
Full Member
Minuteman
Nov 21, 2013
11
0
Inver Grove Heights, MN
I'm relatively new to long range shooting, but not a complete novice to shooting in general. I have been working on learning to make long range shots 600+ consistently. There is no substitute for going out and shooting and that is what I've been doing. However, using some apps such as "Shooter" and "Ballistic AE" would be nice to at least have a reference point. I use mil R&T I know when I'm zeroed at 100 yards, my elevation adjustment is .5 mil up for 200 yards. However the firing solutions I get from both apps is to adjust down .6 mil. that doesn't make any sense to me, and I can't figure out what would cause that value to be so off. I'm shooting a custom 6.5MM Creedmoore w/ a Steiner 4x16x50 scope. I'm using factory Hornady 140 grain A-max bullets and the hornady site solutions are much more accurate. I'm shooting ranges longer the 200, but once I know the apps are that much off at 200 I just don't pay attention to them anymore and focus on what actually happens when I pull the trigger. I would like to figure how to make them accurate, I've tried all sorts of different things, but I'm not getting accurate solutions. Thoughts?
 
My phone did a recent update and after that my solutions were way off to where they made no since. I couldn't find any input that was off. I went to the app store that had an update. Loaded it and it worked like a charm.
 
Heres how to fix your elevetion factor.. how to get fps and elevation square.. let say your fps is 2970 you dialed .5mil at 600yd on bulseye but your balistic chart saying .6mil..correct it with the feature "elevation factor" if you adjust the digits it will shrink or enlarge your elevevation numbers without bothering your fps..
here photo look play with the "Elev. Correction factor"
Screenshot_2014-01-14-12-41-35_zpsbtp6qfrh.png
 
I don't mean to derail the thread but since it's in here I don't want to start another thread.

How do you determine your elevation correction factor? And how do you know of the BC value you are given is a G7/1 value? I'm learning more about external ballistics but I'm unsure about the G(x) BC values

I only ask because I've had small issues with my shooter app as well
 
If it doesn't say, it is probably a G1 BC.

And if you put in a G7 but tell it is a G1 or vice versa, you will get WILDLY wrong answers.
175 grain Siera Match King

G1 - .505 @ 2800 fps and above
.496 between 2800 and 1800 fps
.485 @ 1800 fps and below

G7 - .252