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Firearms are inherently dangerous. You assume all risks associated with firearm ownership, possession, handling, loading, unloading, storage, transport, display, discharge, ballistic calculation, range use, hunting use, competition use, and any other firearm-related activity.

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All ballistic data, drop data, wind data, density-altitude data, truing outputs, print cards, mobile cards, and other calculations may be incomplete, outdated, mis-entered, misread, or inaccurate. Environmental conditions, firearm configuration, ammunition lots, muzzle velocity, bullet BC, zero, scope tracking, shooter input, and software or device limitations can materially change real-world results.

You must independently verify all data with safe live-fire confirmation, a qualified instructor or range officer when appropriate, and your own judgment before relying on it. Never aim, fire, adjust, hunt, compete, or make a safety decision based only on this app.

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Some jurisdictions may not allow certain limitations, exclusions, releases, indemnities, or warranty disclaimers. In those jurisdictions, the limitations apply only to the fullest extent permitted by law. Your legal obligations remain yours alone.

DOPE CARD BUDDY
Precision Ballistics Platform

Your Dope Card,
Dialed In.

G7 drag model ballistics, SAAMI chamber drawings, density altitude truing, and print-ready wrist coach cards — all from your browser, any device.

G7 Point-Mass Trajectory
SAAMI Chamber Drawings
Density Altitude Truing
3×5 Wrist Coach Cards
Speed Drop Factor
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G7Drag Model
37+SAAMI Calibers
2500Max Range (yds)
3×5Wrist Coach Format

What's Inside

Every Tool a Precision Shooter Needs

G7 Ballistic Solver

Point-mass trajectory with G7 drag model, wind drift, and spin drift at any range.

SAAMI Chamber Drawings

Official SAAMI V&P test barrel drawings for 37+ centerfire rifle calibers, rendered inline.

Density Altitude Truing

Real-time DA calculation with MIL truing table. Enter True @ Range to auto-tune your BC.

3×5 Wrist Coach Cards

Print-formatted dope cards sized for a wrist coach. Take your drops to the range.

Speed Drop Factor

Calculate speed drop factor from observed impacts and dial in your actual velocity.

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