Zima Ballistics Calculator

Zima Logistics

In-app purchases

About this app

VALIDATED AGAINST JBM BALLISTICS
Independently verified using a 96-test physics suite covering 4 solvers, 8 drag models, and 6 atmospheric/Coriolis corrections. This isn't marketing — it's math you can trust in the field.

Zima Ballistics Calculator is a professional-grade exterior ballistics engine for precision rifle shooters, hunters, PRS/NRL competitors, law enforcement, and military personnel.

FOUR BALLISTIC SOLVERS
• 3DOF Point Mass — fast, reliable for most scenarios
• 4DOF Modified Point Mass — spin drift, aerodynamic jump, gyroscopic effects
• 6DOF Full — complete aerodynamic modeling with custom drag curves
• Pejsa Closed-Form — analytical solver with BRL drag table integration

All four use corrected physics: π/4 sectional density, atmosphere-adjusted BC, Coriolis and spin drift. Every formula validated against JBM reference trajectories.

160+ INTEGRATED TOOLS
• Drop tables with MOA/MIL corrections out to 2,500+ yards
• Interactive trajectory charts (drop, velocity, energy, windage, TOF)
• 3D trajectory with terrain, solver comparison, animated playback
• 399 true-to-design reticles — pulsing hold points, ghost markers
• Dope card export as print-ready images (1080×1920 PNG)
• Tactical HUD with NVG-compatible night vision display
• PRS stage planner with par timer
• Wind bracketing and estimation training
• Density altitude range cards
• Barrel harmonics / OCW node finder
• Load development with chrono string stats (SD/ES/CV/mean)
• MV degradation tracking across barrel life
• Muzzle blast and recoil estimation
• Shot log with DOPE trending

DATABASES
• 5,607 bullets (Sierra, Hornady, Berger, Lapua, Nosler, Barnes, etc.)
• 674 pellets for airgunners
• 590 cartridges with SAAMI specs
• 107 barrel/twist combinations
• 399 reticle patterns (Vortex, Nightforce, Leupold, Kahles, S&B, etc.)

FIELD-READY
• Live weather from device sensors or OpenMeteo
• GPS target ranging with Google Maps
• Bluetooth chronograph and rangefinder support (Kestrel, LabRadar)
• Wear OS companion for glanceable solutions
• Home screen widget · Full offline operation

HUNTING
• Shot placement with 3D target renders
• Ethical shot distance calculator
• Shooting light calculator (legal hours by GPS)
• Vital zone presets for 9 North American game animals

MILITARY & LAW ENFORCEMENT
• Anti-materiel reference · Glass deflection calculator
• Barrier penetration data · DA Form 5517 generator
• MGRS converter · TAK/ATAK integration (CoT fire solutions)
• Mil relation calculator · Spotter correction calls

TRAINING
• Range estimation · Wind estimation · Competition stage simulation

PRO — $19.99 ONE-TIME PURCHASE
No subscription. No recurring fees. Pay once, unlock everything forever. Free tier includes the full 3DOF solver, bullet database, and core calculator.

PRIVACY FIRST
No ads. No tracking. No account required. All data stays on your device.

WHY ZIMA?
Most ballistics apps are overpriced subscriptions with unverified math, or free apps with ads and questionable accuracy. We validated every solver against JBM, and charge one fair price. Your data goes nowhere. The math is right.

Built by Zima Logistics LLC — Denver, CO
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