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Recent content by Dodgefan

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    Horus Ballistic Kestral

    Re: Horus Ballistic Kestral <div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: KPA</div><div class="ubbcode-body">I just shot out to 1970 yards with one yesterday. I really like the package and would recommend it over conventional kits. Though I'm still trying to...
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    Horus-Kestrel Weather Tracker/Ballistic Calculator

    Re: Horus-Kestrel Weather Tracker/Ballistic Clculator One thing to think about is that in version 3.83 if you have a BC table running and pull up the range card the data generated will use whatever BC is being used for the target range on the main screen. As an example if you have just...
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    Horus-Kestrel Weather Tracker/Ballistic Calculator

    Re: Horus-Kestrel Weather Tracker/Ballistic Clculator Yeah I should of said that in my post. It uses those numbers to build the drag curve so at distances between them it will use a different bc. In my example it uses .440 at 1230m so it might use .435 at 1300m, .430 at 1400 and .425 at 1470...
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    Horus-Kestrel Weather Tracker/Ballistic Calculator

    Re: Horus-Kestrel Weather Tracker/Ballistic Clculator Litehiker The Atrag software has a bc table that allows you to input several different bc's and the distance that you want that bc to take effect. It doesn't use user inputted velocity barriers to change the bc it uses range barriers for a...
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    Range Report Drag on a 6.5 bullet?

    Re: Drag on a 6.5 bullet? If you get to playing with it you will see the effect on the trajectory. Generally speaking the sleeker the bullet the higher the drag coefficient. This is easier on the laptop then the mobile.
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    .308 @ 1760....

    Re: .308 @ 1760.... I watched it get done with a Surgeon built 308 at 1580M on a 16 inch plate, however this was at about 9400 DA. I don't know how well it will work at your altitude. He was using 175 SMK at about 2680. The bullet seemed to be transitioning into subsonic really well...
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    International Sniper Competition Rule Change

    Re: International Sniper Competition Rule Change It was an AMU built Rem 700 in 300 WSM running 175 SMK bullets in a Tac Mod chassis. Those two were(are)good.
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    Kestral 4500NV with Horus ATRAG & Blue Tooth - Int

    Re: Kestral 4500NV with Horus ATRAG & Blue Tooth - Int The military version (only one I've used) has what they call the truing drop function which allows you to tweak the MV or BC to match actual field results (automated version of what everyone does already). It is a decent program for the...
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    International Sniper Competition Rule Change

    Re: International Sniper Competition Rule Change I shot this match in 2008 and they had two classes Open class- Basically anything goes (Robbie Johnson shot a custom built 300WSM with a S&B) Service Class- limited to 308 rifles as issued to your respective service. The guys who won didn't...
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    Range Report Drag Model Help

    Re: Drag Model Help Short answer is that G1 varies more with velocity (the higher the velocity the higher the BC) G7 more accurately reflects the the trajectory of bullets we typically use for long range shooting. What bullet you are using dictates what drag model you want to use.
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    Range Report Drag Model Help

    Re: Drag Model Help I agree with BobinNC if you have a program that lets you choose G7 use it.
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    Range Report LoadBase 3.0 Testing

    Re: LoadBase 3.0 Testing Bryan We were out a couple of weeks ago and Loadbase was only off by .1 mil at 1590 meters from what I actually used. It surprised me because our issue Atrag software before tweaking (truing drop as they call it) was off by 2 mils. I was going to compare it to yours...
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    Range Report HORNADY 208 BTHP MATCH G7 BC's?

    Re: HORNADY 208 BTHP MATCH G7 BC's? Bryan Litz lists the G7 BC at .324 for the 208 Amax in his first book. I still need to order the second one, but I recommend them to everyone just for the G7 BC list alone.
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    Ballistic calculators for PDA

    Re: Ballistic calculators for PDA I don't know if you know this, but when you buy Loadbase you get two licenses. What this means is you can get 2 desktop programs, a desktop and mobile program or 2 mobile programs. So you actually get 2 programs for the price.
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    2011 THUNDER BEAST TEAM CHALLENGE

    Re: 2011 THUNDER BEAST TEAM CHALLENGE I didn't pay enough attention (thought it was 2 days), there is a class going on at the same time.
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