Have not used a Kestral, but would like to get one at this point. I'm on the fence between the Hornady version and the AB Elite version. Hornady has a "Zero Angle" calc and the AB has a "Zero Offset" calc. What do these calcs do, and is one way more important than the other? I'm starting at square one on solution calculations, so big learning curve for me. Thanks!!
Zero Angle seems to be just very carefully made zero with the current atmospherics (Temperature, Air pressure, Humidity). It calculates the angle between the scope and the barrel and uses that for some fancy calculations. I have understood that Hornady uses more complicated calculations but I have nothing to back that up and AB has a VERY good track record.
Taking notes of the zeroing weather to the software allows it to calculate changes in changing weather.
But AB does this atmospherics correction as well, because that is the idea in the Kestrel to begin with!
Offset means that your scope is zeroed for one bullet at 0,0mil and for another round that hits higher it is 0.3. This way you can just dial what the Kestrel gives you and you do not have to count it in your head.
Very good use for offset is if you run the same optic in multiple guns.
Just take note of the turret reading at 100yds and input that as the offset value.
When you then shoot to 300yds you can read the dial value straight from Kestrel.
I really do not like Hornady app very much, but have not used the CDM side at all yet. Maybe the BC side is just worse.
I like Strelok Pro, it is very easy to use and straight-forward.
Nothing forces you to use AB Kestrel with AB app or Hornady's Kestrel with Hornady app. Or with any app at all.
I am going to run it just by itself expect for few situations.
I bought the AB Kestrel.