DeadOn

DeadOn turns your rifle and your load into a range card you can actually use in the field.

Pick your cartridge and your factory load - 247 of them, carrying the manufacturers' own published velocities and ballistic coefficients - or type the numbers off the box. You get bullet path, turret dial in MOA or MRAD, wind, velocity and energy at every range you care about, out to 1500 yards.

The number that matters most sits at the top: how far you can hold dead on and still keep the bullet inside your animal's vitals. It is worked out from the zero your rifle actually has, not from a zero you might have.

WHAT YOU GET

- Point-blank range for your rifle, your load, and the vital zone you choose
- Bullet path and turret dial on one card, read in three seconds
- 247 factory loads across 46 cartridges, or enter your own
- MOA or MRAD per rifle, at your turret's click value
- A home-screen widget with the card on it, no unlocking required
- Rows past 800 yards marked for what they are: reference, not proven dope

BUILT FOR A DARK STAND

Amber on near-black, because long-wavelength light is kinder to eyes that have adapted to the dark. Oversized figures. Nothing to swipe through.

WORKS WITHOUT A SIGNAL

Everything is solved on your phone. There is no account, no sign-in, and nothing leaves the device. The only network call is an optional local-conditions lookup, which is off by default; with it off you get standard-atmosphere numbers, exactly like a printed drop chart.

NO ADS

You paid for it once. There is no ads SDK in the app at all.

HONEST ABOUT THE PHYSICS

DeadOn solves a point-mass trajectory against the standard G1 and G7 drag models - the same physics behind every mainstream ballistic calculator at hunting distances. It does not model Coriolis, spin drift or aerodynamic jump; inside 500 yards those move a bullet a fraction of an inch, far less than the error in an advertised muzzle velocity. Past about 800 yards that stops being true, and the app says so on the card.

Chronograph your load and confirm your zero on paper. No calculator replaces that.

Weather data by Open-Meteo.com.