External Ballistics

Ballistic Trajectory Calculator

Calculate bullet drop, wind drift, and flight time for precision long-range shooting with environmental compensation.

Complete Trajectory Analysis

Calculate precise bullet drop at any distance with our physics-based trajectory model.

Set your zero range and sight height to calculate point-of-impact at any distance.

Adjust calculations for altitude and air density changes for accurate mountain shooting.

Include temperature, humidity, and barometric pressure for precision long-range shooting.

Generate detailed drop tables from 0 to 2000+ yards/meters in customizable increments.

Input your muzzle velocity, ballistic coefficient (G1 or G7), and bullet weight.

Configure altitude, temperature, humidity, and wind conditions for your shooting location.

Get detailed trajectory tables showing drop, drift, velocity, and energy at every distance.

G1 and G7 ballistic coefficient models

Complete environmental modeling

Imperial and metric unit support

Calculate your trajectory and hit your target with confidence.

Every calculator ApexLOAD PRO ships — one click away. See all calculators

Simulate chamber pressure, muzzle velocity and barrel time for any load recipe.

Find the best powders for your caliber and bullet based on fill rate, pressure and velocity.

Tune your load into an OBT node for tighter groups and lower vertical dispersion.

Reverse-engineer the powder charge required to hit a target muzzle velocity — perfect for subsonic loads.

See how powder temperature swings from -19 °C to 51 °C affect pressure and muzzle velocity.

Compare up to three saved diary loads side-by-side across charge, velocity, pressure and accuracy.

Let ApexLOAD's GenAI engine propose safe, optimised load recipes tailored to your components.

Upload a target photo and get automatic group size, MOA, mean radius and impact analysis.