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Recent content by ptosis

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    Best Ballistics App 2025

    :) I should have said “with a given definition of ‘scientific discovery’”. I seriously doubt you guys are developing, say, a new CFD turbulence model, just for airgun pellets. This said, the subject is extremely interesting. A few people I know in the UK, who are stuck with airgun Field Target...
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    Best Ballistics App 2025

    Then, in absence of proof, I would tend to assume "bullshit" as working hypothesis. The ballistics calculators market is extremely competitive, and they are all equally precise, give or take a rounding error. The difference is essentially made by UX/UI, or electronic ecosystem integration with...
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    New Applied Ballistics® Quantum™ APP! - & It's Free!

    Understood. Just posted the request through the app, along with all attached diagnostics info.
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    New Applied Ballistics® Quantum™ APP! - & It's Free!

    Thanks! Just tried all that: - Logged in for Cloud sync using the same Google account as used for Play Store - Checked the app, "Subscription level: Ultralight" - Restarted the device - Checked the app, Cloud sync logged in, subscription level is still "Ultralight" - Completely removed the app...
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    New Applied Ballistics® Quantum™ APP! - & It's Free!

    Thanks for your quick response! I have purchased the app many years ago (I remember we had an exchange re: bug in unit conversion from archaic to metric for wind speed in one of the early versions), but I have never registered for a cloud sync. Do I still qualify for the “+” version? If yes...
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    Best Ballistics App 2025

    Interesting. Could you please ask him for patent numbers ? (because if it is patented, the actual substance should be publicly accessible -- that's the whole idea)
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    New Applied Ballistics® Quantum™ APP! - & It's Free!

    The automatic "upgrade" from the previous AB app to the "Quantum" version has been quite a disappointment. The change of pricing model is quite an annoyance in itself. I paid the old version with the idea of “pay once, use forever”, and it had all the features that I need. The “upgrade” brought...
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    Best Ballistics App 2025

    One that is missing from the list is Lapua Ballistics – a very decent app, with a clear and straightforward interface, and an added bonus of true 6DOF goodies for Lapua bullets (which I mostly shoot anyway). This has become my “go to” app ever since Strelok Pro got tricky to install, and AB...
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    Best ballistic calculator currently?

    The 6DOF bits only apply to Lapua projectiles, which they have data for. In practice, this means accurate spin drift calculations (significantly more accurate than Litz's formula, which everybody else seems to use), and accurate predictions of transsonic stability. Other than that, it is just...
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    How To Use Custom Drag Factors(CDF)

    Thanks! So it's basically a Cd value multiplier (the same for the whole custom Cd/Mach curve).
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    How To Use Custom Drag Factors(CDF)

    Just out of curiosity, and for my personal understanding: technically the CDF is just a BC multiplier, correct ?
  12. P

    Another Picture Thread - All Other Semi-Autos

    The 3-lug "K" is a beauty indeed! HK? Functional full?
  13. P

    Another Picture Thread - All Other Semi-Autos

    What a beautiful piece you have here! I just love the wood furniture!
  14. P

    Another Picture Thread - All Other Semi-Autos

    'fcourse not. As it is written: "Then, shalt thou count to three. No more. No less."
  15. P

    Another Picture Thread - All Other Semi-Autos

    if I may adventure a question -- what is the AGOG you've put on it, and why ?
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