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G7 drag model ballistics, SAAMI chamber drawings, density altitude truing, and print-ready wrist coach cards — all from your browser, any device.
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What's Inside
Point-mass trajectory with G7 drag model, wind drift, and spin drift at any range.
Official SAAMI V&P test barrel drawings for 37+ centerfire rifle calibers, rendered inline.
Real-time DA calculation with MIL truing table. Enter True @ Range to auto-tune your BC.
Print-formatted dope cards sized for a wrist coach. Take your drops to the range.
Calculate speed drop factor from observed impacts and dial in your actual velocity.
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