DOPE: Ballistics Calculator
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Everyone
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50+
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About this app
DOPE (Data On Previous Engagements) turns your rifle, your optic, and your load into exact firing solutions — built for the range, usable with gloves on, readable in sunlight.
BALLISTICS CALCULATOR
• Full physics engine: G1/G7 drag models, wind drift, shot angle, density altitude
• Exact solutions at any distance — elevation and windage in inches, MOA, MRAD, and turret clicks for YOUR scope
• Range cards with come-ups and wind holds at your intervals
• Reticle view: see your exact hold on your actual reticle (Mil-Dot, EBR-2C, TReMoR3, BDC, and more) at your magnification
• Environmental corrections: temperature, pressure, humidity, altitude
• Point-blank range and transonic warnings
ZEROING AID (PRO)
• Photograph your target and let DOPE find your shots — or tap them in
• Works with printed targets AND hand-painted targets (tell it one known dimension)
• Get the exact turret correction: direction, clicks, and the residual after you dial
• Built-in troubleshooting assistant for tracking problems, off-paper shots, and rough zeros — works offline at the range
YOUR GEAR, MODELED RIGHT
• Catalogue of hundreds of rifles, pistols, and optics — or enter custom specs
• Loadouts pair a firearm, an optic, and a load; switch between them in one tap
• Type-ahead search across makes and models
• Truing: match the solver to your real observed come-ups (PRO)
• Shot log: record what you came up, where, and in what weather (PRO)
SHARE YOUR RESULTS
• One tap turns a zero session or range card into a clean shareable image
FREE vs PRO
The ballistics calculator, range cards, reticle view, and one loadout are free forever. DOPE Pro adds the Zeroing Aid with photo detection, Truing, Shot Log, and unlimited loadouts.
DOPE Pro is an auto-renewing subscription: $3.99/month or $24.99/year. Payment is charged to your Google account at confirmation of purchase. The subscription renews automatically unless cancelled in Google Play at least 24 hours before the end of the current period. Manage or cancel any time in Google Play → Subscriptions.
Terms of Use (EULA): https://dope-rho.vercel.app/terms
Privacy Policy: https://dope-rho.vercel.app/privacy
Support: https://dope-rho.vercel.app/support
Know your DOPE before the shot ever breaks.
BALLISTICS CALCULATOR
• Full physics engine: G1/G7 drag models, wind drift, shot angle, density altitude
• Exact solutions at any distance — elevation and windage in inches, MOA, MRAD, and turret clicks for YOUR scope
• Range cards with come-ups and wind holds at your intervals
• Reticle view: see your exact hold on your actual reticle (Mil-Dot, EBR-2C, TReMoR3, BDC, and more) at your magnification
• Environmental corrections: temperature, pressure, humidity, altitude
• Point-blank range and transonic warnings
ZEROING AID (PRO)
• Photograph your target and let DOPE find your shots — or tap them in
• Works with printed targets AND hand-painted targets (tell it one known dimension)
• Get the exact turret correction: direction, clicks, and the residual after you dial
• Built-in troubleshooting assistant for tracking problems, off-paper shots, and rough zeros — works offline at the range
YOUR GEAR, MODELED RIGHT
• Catalogue of hundreds of rifles, pistols, and optics — or enter custom specs
• Loadouts pair a firearm, an optic, and a load; switch between them in one tap
• Type-ahead search across makes and models
• Truing: match the solver to your real observed come-ups (PRO)
• Shot log: record what you came up, where, and in what weather (PRO)
SHARE YOUR RESULTS
• One tap turns a zero session or range card into a clean shareable image
FREE vs PRO
The ballistics calculator, range cards, reticle view, and one loadout are free forever. DOPE Pro adds the Zeroing Aid with photo detection, Truing, Shot Log, and unlimited loadouts.
DOPE Pro is an auto-renewing subscription: $3.99/month or $24.99/year. Payment is charged to your Google account at confirmation of purchase. The subscription renews automatically unless cancelled in Google Play at least 24 hours before the end of the current period. Manage or cancel any time in Google Play → Subscriptions.
Terms of Use (EULA): https://dope-rho.vercel.app/terms
Privacy Policy: https://dope-rho.vercel.app/privacy
Support: https://dope-rho.vercel.app/support
Know your DOPE before the shot ever breaks.
Firing solutions, range cards, reticle holds & photo zeroing for shooters.
Updated on
Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
- No data shared with third partiesLearn more about how developers declare sharing
- This app may collect these data typesPersonal info and Financial info
- Data is encrypted in transit
- You can request that data be deleted
What’s new
DOPE Pro now starts with a 7-day free trial on the yearly plan. Cancel any time before it ends and you will not be charged.
App support
About the developer
Varr Stack Technologies LLC
adam@varrstacktech.com
8 The Grn Ste B
Dover, DE 19901-3618
United States
+1 810-531-5079