Making Better Shooters,
Through Science
Engineering grade 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.
★ Subscribe for an enhanced ballistics calculator with custom ballistic trueing, full reloading load development lab, and cloud saved rifle and load data with session tracking. Open any paid tool to subscribe or see what it offers
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 →Advanced Ballistics Calculator
RK4 solver, bullet library, Coriolis, spin drift, and cloud save. The full physics engine.
Open Calculator →Load Development Lab
Charge weight and seating depth tracking with auto-graphing and cloud save across sessions.
Open Lab →My Rifles & Loads
Every rifle and load you’ve saved, organized in one place, tied to your bullets and Load Lab data.
Manage Rifles →Try It Yourself.
Enter your numbers and watch the drop update live — no login required.
Live
— MIL
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
New Articles. Calculator Updates. Ballistic resources
Science backed ballistics articles, reloading deep dives, and calculator updates. Stay up to date and make yourself a better shooter, through science.