Bullseye
Solve
Firing solutions
Elevation and windage in MOA or mil, from G1 or G7 drag. Spin drift is applied for you. Coriolis uses your GPS latitude and a compass bearing.
Ballistics calculator for Android
Dial it once. Hit it first.
Bullseye turns your rifle data and the conditions on the ground into elevation and windage you can read at a glance. It takes live wind and weather from your Bluetooth sensors, and it logs every shot so you can see how your dope holds up.
Coming soon to Google Play
One-time purchase.
Every feature included.
Every feature included.
500 yd · Elevation
▲ 11.58 MOA
10 mph · Windage
▶ 3.79 MOA
Velocity
1,767 fps
Time of flight
0.70 s
.308 Win, 175 gr SMK, G7 0.243, 2,610 fps, 100 yd zero, 59 °F at sea level, 10 mph from 3 o'clock. Windage includes spin drift. Solved by the app, as on the range screen above.
What it does
Everything for the shot, and after it
Build a profile once. Bullseye solves the shot with a full point-mass engine and keeps a record of what actually happened.
Sense
Live sensors
Connect several Bluetooth sensors at once. Wind, temperature, pressure and humidity feed one live solution.
True
Two-point truing
Enter what you really dialled at two known distances. Bullseye adjusts muzzle velocity and drag to match your rifle.
Log
Shot log and voice calls
Say "hit" or "miss, one mil low" and the shot is logged. Track your hit rate by distance.
Measure
Groups from a photo
Photograph the target, then mark two reference points, your aim point and the holes. Bullseye measures the group and how far its centre is from your aim.
Develop
Load development
Record charge ladders and seating tests with velocity and group size per rung. Turn the best rung into a load.
Compete
Matches
Build the stage list, then step through it on the day. Each target's dial is ready, and every shot you log is tagged with its stage.
Maintain
Barrel life and cleaning
Rounds count as you log shots. See barrel life left, and turn on a reminder for when a clean is due.
Adjust
Powder temperature
Enter your load's velocity at two or more temperatures. The solution follows the ammo temperature on the day.
In the app
Built to read at the range
Big numbers and high contrast, so the dial reads at a glance.
Range card
A full dope table for the load. Share it as an image or as text.
Home
Each tile shows where you left off.
Load development
Velocity and group size for every rung.
Velocity check
Average, SD and ES from your chronograph readings.
Groups
Mark the holes on a photo and get the size.
Bluetooth
Works with
- Calypso Ultrasonic wind meter, for wind speed and direction
- WeatherFlow Tempest shooting weather meter
- RuuviTag
- Most Bluetooth sensors that use the standard Environmental Sensing service
Use more than one at a time. Pick which sensor supplies each reading.
Private by design
Your data stays yours
- No ads, no analytics and no tracking.
- Everything works without an account. Only sign-in and cloud backup use the internet.
- Cloud backup is optional and off until you sign in. Android's own phone backup may also keep a copy.
- Target photos and voice audio never leave your phone.