300BLK Dope
Single Zero POI Calculator
About
This app calculates ballistic trajectories for .300 Blackout ammunition, comparing supersonic and subsonic loads with real-time environmental corrections. It provides detailed dope tables, custom load presets, and an interactive trajectory chart for precise shooting.
What's New in 300BLK Dope
1.5
May 4, 2026
• New factory load: HSL Ammunition .300 BLK 220gr Subsonic • Corrected bullet length specifications for Phantom Defense Big Brother Rex • Bullet length is now an editable field when creating or editing load presets • Improved speed-of-sound calculation accuracy in humid conditions • Performance, reliability, and code quality improvements
MoreFAQ
What is 300BLK Dope?
300BLK Dope is a precision ballistic calculator designed specifically for .300 Blackout ammunition. It helps shooters calculate trajectories for both supersonic and subsonic loads with real-time environmental data.
Does 300BLK Dope have ads?
No, 300BLK Dope is ad-free. Users can enjoy a distraction-free experience while calculating ballistics.
What devices does 300BLK Dope support?
300BLK Dope is available on iPhone and iPad devices. It is designed to be accessible on Apple's mobile platforms.
How often is 300BLK Dope updated?
The latest version, 1.5, was released on May 4, 2026. Updates typically include improvements and new features based on user feedback and ballistic data.
Can I compare different types of .300 Blackout loads in 300BLK Dope?
Yes, you can compare any combination of supersonic and subsonic loads side by side. This feature allows for direct comparison of different ammunition performance.
Does 300BLK Dope use real-time weather data?
Yes, 300BLK Dope integrates with Apple Weather to provide real-time environmental corrections for temperature, pressure, humidity, and altitude based on your location.
What kind of ballistic data does 300BLK Dope provide?
300BLK Dope provides detailed dope tables including drop, MOA corrections, velocity, energy, and spin drift. It also offers an interactive trajectory chart with zoom and pan functionality.
Is 300BLK Dope suitable for beginners?
While designed for precision, the app's clear interface and features like the factory ammo library make it accessible. Its focus on .300 Blackout simplifies the ballistic calculation process for users of this specific caliber.