Making Better Shooters
Through Science
Ballistic tools and education from a firearm design engineer
The Toolkit.
Calculators and ballistics tools to get you on target
Free tools don’t require an account but don’t skimp on performance.
Also free: Ballistics Charts and Cartridge Database
Basic Ballistics Calculator
Full G1/G7 trajectory solver. Enter your bullet, conditions, and zero. Get a complete drop and drift table.
Run a solution →Group Analyzer
Measure extreme spread, mean radius, and SD from POA directly from a photo of your target.
Analyze your group →Hit Probability Calculator
Know your odds before the shot, from velocity SD, group size, and target dimensions.
Calculate probability →MOA ↔ MIL Converter
Instant unit conversion with real-world reticle context and scope click counts built in.
Convert now →
No more guessing down range.
Pro does more than add tools. Every one of them saves to the same rifle and load profile, so your data builds on itself. Track results and performance to truly understand your system.
7 days free, then $6/mo. Card required, cancel anytime.
Latest Posts.
How Many Shots Until You Can Trust Your Velocity Data
Ballistic Coefficient Deep Dive: Using It to Calculate Bullet Flight
G1 vs G7 Ballistic Coefficients Explained
How to Find Your Rifle’s Lands (Bullet Jump Measurement Guide)
Hit Probability at Long Range: The Math Behind Making the Shot
Getting Started in Reloading: The Gear
Choose Your Category
Articles breaking down all things long range and precision.
Long Range Shooting
Fundamentals, positions, wind reading, DOPE, and practical marksmanship.
Ballistics
Trajectory, BC, drag, spin drift, Coriolis, transonic flight, and environmental effects.
Reloading
Load development, SD vs ES, seating depth, powders, primers, and precision ammo.
Rifle Engineering
Barrels, actions, triggers, suppressors, accuracy, recoil management, and design.
Latest Video
Meet The Engineer
Kason Church
Mechanical engineer and firearm design engineer passionate about helping shooters understand the science behind precision shooting.
- Mechanical Engineering Background
- Firearm Design & Development
- Long Range Shooting Competitor
- Ballistics Research
- Reloading Enthusiast
- Teacher & Content Creator