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Exbal, Kestrel 3500 and different altitude readings?

 
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Old 09-22-2009, 09:41 AM
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Location: N. Central Indiana
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Exbal, Kestrel 3500 and different altitude readings?

I have a Kestrel 3500. I followed the mfg. info. on how to calibrate it (I think). Using the local weather station to check barometric pressure, the barometric pressure in the Kestrel will correspond to the weather stations' reading, but the altitude will bounce as much as 330'. (usually reading higher than what the altitude actually is)

How this affect the actual poi of the bullet when using exbal? (hoping to get an answer without having to run more bullets down the .

FWIW, gun in question is .257 Wby shooting 130g Wildcat R.B.B.T. ULD @ 3280 fps, verified bc .635, sight height 1.750" The gun was sighted in @ 300 Yds.
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Old 09-22-2009, 09:52 AM
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Re: Exbal, Kestrel 3500 and different altitude readings?

I don't use my set up the same way as you. I have my kestrel's ref alt set at zero and use station pressure, and a GPS for alt when I was using exbal.
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Old 09-22-2009, 11:48 AM
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Re: Exbal, Kestrel 3500 and different altitude readings?

Quote:
Originally Posted by jmason View Post
I don't use my set up the same way as you. I have my kestrel's ref alt set at zero and use station pressure, and a GPS for alt when I was using exbal.

+1.......
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