Range Report Ballistic FTE problems; inaccurate results

[T-random]

I recently purchased the Ballistics FTE app, and was testing it with these variables: http://www.longrangehunting.com/forums/f19/warm-up-your-ballistics-calculator-52033/ Before running it against my own dope; the results were waay off, to the point were they were double of what they should be, can someone help me fix this?

--Tom

Edit: It is set to JBM
The results were as following:
750: Drop MOA -19.85 Wind 5.20
1600: Drop -127.62 Wind 14.36

 

[Lindy]

Re: Ballistic FTE problems; inaccurate results

I suggest you run your Ballistic FTE against the JBM online calculator. If your results aren't close to what Bryan Litz got, figure out why, comparing each and every input parameter to the two programs.

 

[azimutha]

Re: Ballistic FTE problems; inaccurate results

I'm almost certain that you're leaving the Native Drag Model on G1 but with a G7 BC entered and Use Drag Model also set to G1. Both need to be set to G7. I entered the data mentioned on that LRH link and got:

<div class="ubbcode-block"><div class="ubbcode-header">Code:</div><div class="ubbcode-body ubbcode-pre" ><pre>
Range Elevation Windage
correction correction
----------------------------------
750 UP 12.04 MOA Left 2.31 MOA
1015 UP 20.28 MOA Left 3.43 MOA
1600 UP 49.08 MOA Left 6.94 MOA
2200 UP 106.36 MOA Left 11.74 MOA

</pre></div></div>
vs. Bryan Litz' post using his Moball calculator:
<div class="ubbcode-block"><div class="ubbcode-header">Code:</div><div class="ubbcode-body ubbcode-pre" ><pre>
Range Elevation Windage
correction correction
----------------------------------
750 UP 12.1 MOA Left 2.4 MOA
1015 UP 20.4 MOA Left 3.6 MOA
1600 UP 49.4 MOA Left 7.2 MOA
2200 UP 107.1 MOA Left 12.3 MOA
</pre></div></div>
So I'd say that it's certainly possible to get results with Ballistic that are in general agreement with JBM or Litz' application.

 

[T-random]

Re: Ballistic FTE problems; inaccurate results

Ouch. I had only one setting to G7, not both.