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  1. D

    Rifle Scopes Official Zero Compromise Optic News & Updates

    Hi, I am looking to get a scopecam that will fit the ZCO527, and was looking to buy the TriggerCam or Tactacam (as the SideShot cam doesn't work with Ø36mm) - Why didn't the TriggerCam work? Are there any good alternatives to the ones mentioned above? Shooting while holding your phone is not...
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    Rifle Scopes 0MIL or 6MIL Spuhr Mount for Zero Compromise 527?

    Hi, thanks for your input. 6 MIL it is then. The reasoning behind my questions is the expectation, that the scope is delivering the best optical performance when the erector tube is centered in the scope - which is why I posted the distances I typically shoot. I also expect adjusting the...
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    Rifle Scopes 0MIL or 6MIL Spuhr Mount for Zero Compromise 527?

    Hi, I’m about to buy a ZCO527 and am wondering what Spuhr Mount to go for, the 0MIL or the 6MIL version (so the SP-6001 or the SP-6601). I am shooting the old 6.5x55 SKAN and need to go 6MIL up to reach approx. 700 meters. I am shooting from 50-1300 meters, but mostly in the 200-800 meter...
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    Tikka T1X

    Edi, does the T1X drop right into the E-Tac 3 ultra light for Tikka T3/T3X without any modifications?
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    Kestrel 5700 elite V1.23 applying waaay too much spin drift?

    Hi Kestrel Ballistics, glad that I could help :)
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    Kestrel 5700 elite V1.23 applying waaay too much spin drift?

    Hi Kestrel Ballistics, Thanks for the tip regarding turning off automatic bullet length calculation in the Kestrel app - that is good that I don't have to manually correct it every time the gun profiles are renewed on the Kestrel. When I turned off the auto calc. in the app, then the bullet...
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    Kestrel 5700 elite V1.23 applying waaay too much spin drift?

    Well, thanks. I hope that other Kestrel users can use this learning and avoid the pitfall of wrong bullet length when calculating spin drift. I also hope that Kestrel will take this into consideration when doing the next software upgrade for the app and for the Kestrel itself.
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    Kestrel 5700 elite V1.23 applying waaay too much spin drift?

    Hi Plidenbrock, thank you very much for your input. Great to know that I'm not the only one who has experienced this! Actually, I don't understand why this flaw in the Kestrel has not been discussed before (I wasn't able to find any info on Google or the forums), since this must be a common...
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    Kestrel 5700 elite V1.23 applying waaay too much spin drift?

    Hi Kestrel Ballistics, the gun profiles I have uploaded is shown in the screenshot below - do you see any entry error? - it is not possible to enter the bullet length in the app, only directly in the Kestrel. I have transferred the "Test" gun to the Kestrel, as you suggest, and now it looks...
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    Kestrel 5700 elite V1.23 applying waaay too much spin drift?

    OK! - strange :unsure: I tend to believe the value supplied by Lapua though. Also, I believe that I have sorted it out. See Post #6, but the questions still stand: - Am I right? - Is it the actual bullet length I should physically measure with a caliper, and feed into the Kestrel? - Why is...
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    Kestrel 5700 elite V1.23 applying waaay too much spin drift?

    Haha - MIL and Metric is a pretty smart combination ;) 1 MIL = 10 cm @ 100m :love: Inches and yards on the other hand is giving me a headache, since I come from Denmark and most info on LR shooting is coming from the US (y) Anyways. According to the Lapua homepage, the G1 BC for the Naturalis...
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    Kestrel 5700 elite V1.23 applying waaay too much spin drift?

    OK. I have now made the drift calculation myself (see attached picture), and it yield a drift of 2,9MIL, when using the parameters stated above. I am pretty sure of the BC, Caliber, Weight, MV, Barrel twist and temp, so I tried to vary the altitude and bullet length. Changing the altitude...
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    Kestrel 5700 elite V1.23 applying waaay too much spin drift?

    Hi pell1203, thank you for your observations! As I understand it, spin drift is dependent on the following parameters, that I have checked and double checked in the Kestrel: - Muzzle velocity: 798 m/s - BC: 0.201 G1 - Caliper: 6.71mm - Time of bullet flight: 1.076sec (for the 500m shot) -...
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    Kestrel 5700 elite V1.23 applying waaay too much spin drift?

    Anyone? :unsure:
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    Kestrel 5700 elite V1.23 applying waaay too much spin drift?

    Hi, I have just recieved my brand new Kestrel 5700 Elite with Link, and have run into the following problem I hope you can help me solve. It seems that the Kestrel is adding waaay too much spin drift, and I can't find where I have put "garbage in" to get "garbage out" - please help! I have...
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