Orme's Recoil Index

A tool for gauging recoil.

Free · Designed for iPad

Now with dynamic recoil feedback! Feel the kick of your calculations with custom haptics and a new visual shake effect. "Orme's Recoil Index" is a practical yet refined utility for shooters, sportsmen, collectors, and curious minds alike. Designed in the spirit of Orme Dumas—collector, storyteller, and connoisseur of curious contraptions—this tool helps demystify the science of firearm recoil. Whether you're comparing vintage revolvers or dialing in your precision rifle setup, Orme offers you a gentleman’s view of felt recoil. The app uses detailed ballistics modeling to calculate recoil energy, velocity, and bullet dynamics. Simply enter your rifle or revolver specs—weight, barrel twist, bullet diameter, velocity, powder charge—and get instant feedback on expected recoil energy, angular spin, and most importantly... comfort. Features: - NEW! Dynamic visual and haptic feedback to simulate felt recoil. - Supports rifle and revolver inputs - Accounts for muzzle brakes and suppressors - Uses twist rate and bullet dimensions to estimate spin and angular velocity - Assigns a comfort level using Orme’s delightfully dry labels like “Manageable with Tea” or “Call the Medic” - Color-coded feedback and a gentle UI aesthetic designed for field or fireside use Who’s it for? - Firearms enthusiasts wanting to compare recoil across platforms - Collectors cataloguing vintage arms - Precision shooters refining setup - Ballistics nerds and Orme aficionados alike This app collects no personal data, displays no ads, and exists solely to serve the inquisitive mind with style and respect. A companion to The Abiqua Collection, a growing archive of American firearm history.

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This update introduces a new layer of immersion to your recoil calculations! • Dynamic Recoil Feedback: Now, in addition to the numbers, you'll experience a visual "shake" and physical haptic feedback on supported devices. • Feel the Kick: The intensity of the shake and the character of the haptic pattern are directly tied to the five Comfort Levels. A "Fine Afternoon" feels like a crisp tap, while "Consult a Bonesetter" delivers a powerful kick and shudder you can really feel! • UX Improvements: Added a "Done" button to the numeric keyboard for easier data entry on iPhone.

Version 1.1.0

The developer, Kenneth Alger, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .

  • Data Not Collected

    The developer does not collect any data from this app.

    Privacy practices may vary, for example, based on the features you use or your age. Learn More

    Accessibility

    The developer has not yet indicated which accessibility features this app supports. Learn More

    Information

    • Seller
      • Kenneth Alger
    • Size
      • 6.9 MB
    • Category
      • Utilities
    • Compatibility
      Requires iOS 17.5 or later.
      • iPhone
        Requires iOS 17.5 or later.
      • iPad
        Requires iPadOS 17.5 or later.
      • Mac
        Requires macOS 14.5 or later and a Mac with Apple M1 chip or later.
      • Apple Vision
        Requires visionOS 1.2 or later.
    • Languages
      • English
    • Age Rating
      16+
    • Copyright
      • © 2025 The Abiqua Collection. All rights reserved.
  • Developer Website
  • Privacy Policy

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