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Alpine ZeroPak


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Thread: Barometric pressures at altitude

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Bagheera Barometric pressures at... 24-10-2020, 09:32 PM
Puffin https://keisan.casio.com/exec/... 24-10-2020, 09:55 PM
Bagheera Thanks Puffin that calculator... 24-10-2020, 10:06 PM
Bagheera Whats the device youve got in... 24-10-2020, 10:13 PM
7mmsaum Altitude alone can be a very... 24-10-2020, 09:58 PM
7mmsaum It’s a Skywatcher Explorer 4 ... 24-10-2020, 10:25 PM
Bagheera Ok you've made me ask. Whats... 24-10-2020, 10:32 PM
andyanimal31 Station pressure is the... 24-10-2020, 10:52 PM
andyanimal31 This is on the... 24-10-2020, 11:04 PM
7mmsaum There are a bunch of ways to... 24-10-2020, 11:15 PM
zimmer Ultimately it is air density... 25-10-2020, 02:11 AM
Moutere A phone with an in built... 25-10-2020, 08:15 AM
223nut Watches with barometer in... 25-10-2020, 08:29 AM
blair993 Use my watch for air... 27-10-2020, 09:00 PM
andyanimal31 Yep I agree that using your... 27-10-2020, 09:12 PM
blair993 If you really want to do your... 27-10-2020, 09:45 PM
andyanimal31 Yep your dead right there!... 27-10-2020, 09:52 PM
blair993 I'v stretched things. still... 27-10-2020, 10:33 PM
andyanimal31 The 5700 gives it to you for... 27-10-2020, 10:36 PM
blair993 Ok. I didnt use it at 2k and... 28-10-2020, 10:10 AM
andyanimal31 Spin drift yes you can turn... 28-10-2020, 12:10 PM
Bagheera Hi here are the air pressure... 28-10-2020, 10:38 PM
Dead is better I'm finding my kestrel most... 29-10-2020, 11:00 AM
Bagheera Here are drop tables I made... 31-10-2020, 03:29 PM
Bagheera Representative altitudes in... 31-10-2020, 04:10 PM
  1. #11
    Member zimmer's Avatar
    Join Date
    Oct 2012
    Location
    Waikato
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    5,089
    Ultimately it is air density is what affects bullet drag.
    This article is one of the best I have read that simply explains what happens and what inputs were needed.
    Absolute air pressure is station pressure.

    https://bisonballistics.com/articles...cs-calculators
    Bagheera likes this.

 

 

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