DeadOn
Rifle range cards for hunters
About
This app generates custom rifle range cards for hunters, calculating bullet path, turret adjustments, and point-blank range based on your specific rifle and ammunition. It works offline and features a dark-mode display for low-light conditions.
What's New in DeadOn
1.1.1
September 26, 2026
Measure sight height with your phone. Tap the ruler on the rifle form, hold the phone flat against the action, and drag the two lines onto the centre of the bolt and the centre of the scope tube. Check the ruler against a bank card once so it reads true on your screen.
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FAQ
What is DeadOn used for?
DeadOn is used to create custom rifle range cards. It calculates crucial data like bullet path, turret adjustments, and point-blank range for your specific rifle and ammunition, helping you make accurate shots in the field.
Does DeadOn work offline?
Yes, DeadOn is designed to work without a signal. All calculations are performed on your device, and there is no account or sign-in required, ensuring you can use it even in remote hunting locations.
How accurate is DeadOn?
DeadOn uses standard G1 and G7 drag models for its calculations, similar to mainstream ballistic calculators. It acknowledges that beyond 800 yards, factors like Coriolis and spin drift become more significant, and it notes this on the range card.
What kind of range data does DeadOn provide?
DeadOn provides bullet path, turret dial in MOA or MRAD, velocity, and energy at various ranges up to 1500 yards. It also calculates the point-blank range based on your chosen vital zone and rifle zero.
Can I enter my own load data into DeadOn?
Yes, in addition to 247 factory loads, you can manually enter your own ballistic coefficients and velocities if you have them from a box or chronograph.
What is the display like in DeadOn?
DeadOn features an amber on near-black display, which is optimized for low-light conditions to be easier on the eyes. It uses oversized figures and avoids swiping to keep information readily accessible.
Does DeadOn have ads?
No, DeadOn is completely ad-free. The app states that you paid for it once and there is no ads SDK included in the application.
What devices does DeadOn support?
DeadOn is available for iPhone and iPod devices. It is rated for ages 4 and up.