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Mar 25th, 2012
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Altitude and Dope #6988701
12/08/17 07:52 PM
12/08/17 07:52 PM
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Palo Pinto county
Cattleman Offline OP
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I'm going on a Mule deer hunt next week around Fort Davis and I need to know how much my dope will be off going from 900 ft to 4800 ft elevation. I plugged my info in Geobalastics and it's telling me that I will only be a tenth or two off . That doesn't seem right to me. Is this correct?

Re: Altitude and Dope [Re: Cattleman] #6988737
12/08/17 08:17 PM
12/08/17 08:17 PM
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What is the maximum distance you will take a shot?

What bullet and velocity?

Apart from that, checking the zero when you arrive there will reduce the difference, if any.

Re: Altitude and Dope [Re: Cattleman] #6988740
12/08/17 08:18 PM
12/08/17 08:18 PM
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Wolfe City, TX
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Generally, you will not see significant changes until 500 yards. The farther out you shoot, the more temp and DA change velocity decay, and therefore change elevation corrections.



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Re: Altitude and Dope [Re: Cattleman] #6988831
12/08/17 09:21 PM
12/08/17 09:21 PM
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Palo Pinto county
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Thanks. I probably won't shoot a deer if it's over 400-500 yards especially if it's windy . Pigs and coyotes you bet .

Re: Altitude and Dope [Re: Cattleman] #6988970
12/08/17 10:46 PM
12/08/17 10:46 PM
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Just check your zero when you arrive out there and rerun the local conditions on a phone app and you should be fine. Good luck! up

Re: Altitude and Dope [Re: jeffbird] #6989377
12/09/17 05:31 AM
12/09/17 05:31 AM
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Royse City, TX
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Originally Posted By: jeffbird
Just check your zero when you arrive out there and rerun the local conditions on a phone app and you should be fine. Good luck! up
Yep, that's what I'd do. Let it calculate your DA and your DOPE if you already have a good known velocity and BC.

Re: Altitude and Dope [Re: Cattleman] #6989525
12/09/17 01:50 PM
12/09/17 01:50 PM
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A tenth or two sounds about right at 5-600 with a 4000ish change. Zero wont change, but pick you a rock at 500 and let one rip with a spotter. Also good luck!

Re: Altitude and Dope [Re: Cattleman] #6989654
12/09/17 04:00 PM
12/09/17 04:00 PM
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Wise Co.
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Title of the thread had me thinking the topic was going to be the 1960s.
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Re: Altitude and Dope [Re: RiverRider] #6989659
12/09/17 04:06 PM
12/09/17 04:06 PM
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Wolfe City, TX
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Originally Posted By: RiverRider
Title of the thread had me thinking the topic was going to be the 1960s.
geekfreak


Or a story from current day Denver, Colorado .



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Re: Altitude and Dope [Re: Cattleman] #6989739
12/09/17 06:05 PM
12/09/17 06:05 PM
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Lewisville, TX
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That's about right. Here's a good JBM site to run the elevation and temp charts:

http://www.jbmballistics.com/cgi-bin/jbmcard-5.1.cgi



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Re: Altitude and Dope [Re: Cattleman] #6989753
12/09/17 06:23 PM
12/09/17 06:23 PM
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Posts: 919
Palo Pinto county
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Thanks men. I hope I have a story with a nice buck to share in a few days.

Re: Altitude and Dope [Re: Cattleman] #6996577
12/14/17 10:38 PM
12/14/17 10:38 PM
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Palo Pinto county
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Here's my deer. Story in the deer hunting section.

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