What is Atlas Ballistics?

Atlas Ballistics manages 2 data types including support articles. Helps you organize, track, and share your work in 1 place for teams and solo users.

Cartridge Twist Rate Chart & Stability Calculator

Recommended twist rate by cartridge, with calculated stability factors for common bullets and a free Miller stability calculator.

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About — The story behind Atlas Ballistics, the ballistic calculator built by a shooter for precision rifle shooters and hunters.
Features — Features on Atlas Ballistics – Ballistic Calculator App for iPhone. Precision ballistic calculator for iPhone, iPad, Mac and Apple Watch.
Help Center — Guides and answers for Atlas Ballistics: rifle profiles, truing, range cards, settings and account help.
Support Article Detail — Support Article Detail on Atlas Ballistics – Ballistic Calculator App for iPhone. Precision ballistic calculator for iPhone, iPad, Mac and Apple Watch.
Compare — Honest side-by-side comparisons of Atlas Ballistics with Strelok, Hornady, Applied Ballistics, Kestrel and other ballistic calculators.
Energy Calculator — Free bullet energy calculator. Enter bullet weight and velocity to get muzzle and downrange energy in ft-lbs and joules.
Moa Mil Calculator — Convert MOA to MIL, MIL to MOA, and either to inches or clicks at any distance. Free, instant angular conversion calculator.
Twist Rate Calculator — Twist rate calculator using the Miller rule. Check if your barrel stabilizes a bullet and find the twist rate you need for long, high-BC bullets.
Recoil Calculator — Free rifle recoil calculator. Get recoil energy and velocity from bullet weight, powder charge, velocity and rifle weight.
Angle Calculator — Uphill and downhill shot calculator. Find the horizontal range and corrected hold for any angle using the cosine method.
Ballistics Hub — Free ballistics charts for popular rifle cartridges: drop, velocity, energy and wind drift, solved from real factory load data.
Mpbr Calculator — Maximum point blank range calculator. Find the best zero distance and MPBR for your load and target vital-zone size.
Density Altitude Calculator — Density altitude calculator for shooters. Convert temperature, pressure, humidity and elevation into density altitude and air density for accurate drops.
Zero Calculator Page — Zero Calculator Page on Atlas Ballistics – Ballistic Calculator App for iPhone. Precision ballistic calculator for iPhone, iPad, Mac and Apple Watch.
Grains To Grams — Grains To Grams on Atlas Ballistics – Ballistic Calculator App for iPhone. Precision ballistic calculator for iPhone, iPad, Mac and Apple Watch.
Bullet Stability Calculator — Bullet Stability Calculator on Atlas Ballistics – Ballistic Calculator App for iPhone. Precision ballistic calculator for iPhone, iPad, Mac and Apple Watch.
Unsubscribe — Unsubscribe on Atlas Ballistics – Ballistic Calculator App for iPhone. Precision ballistic calculator for iPhone, iPad, Mac and Apple Watch.
Privacy Policy — How Atlas Ballistics collects, uses and protects your data.
Terms And Conditions — Terms And Conditions on Atlas Ballistics – Ballistic Calculator App for iPhone. Precision ballistic calculator for iPhone, iPad, Mac and Apple Watch.