Reloading software

With detailed data on 400+ calibers, 600+ bullets, and an ever-growing list of gun powders,

Precise Load is designed to make ballistics calculations simple and accessible to everyone.

Ballistics calculators and Apps

Hornady Ballistic Calculator – A comprehensive online calculator from Hornady for inputting cartridge, bullet, and environmental data to compute trajectory
Federal Premium Ballistics Calculator – Lets you determine trajectory for rifle or handgun loads, with options to save multiple custom loads. Available in both Imperial and Metric units.
Winchester Ballistics Calculator – Input your hunting or shooting conditions to visualize bullet drop, drift, velocity, and energy via graphs and charts.
Berger Bullets Ballistics Calculator – Calculates trajectory using G1 or G7 ballistic coefficients (BCs), accounting for external factors.
Lapua Ballistics App – A free mobile 6DOF ballistic calculator (most accurate type) using Doppler-proven data. Supports multiple languages and allows custom bullet entries. Available for iOS and Android.
Applied Ballistics (AB Quantum™ and Apps) – Offers highly accurate solvers and apps such as AB Analytics (desktop), AB Mobile, Kestrel LiNK Ballistics, SIG Sauer BDX, Bushnell Ballistics, and more.
P-Max Internal Ballistics Simulator – A free, browser-based internal ballistics tool that simulates pressure, velocity, and energy with graphs. Warns against replacing safe, real-world testing.

BulletMatch Lead Alloy Calculator – An online tool where you input each alloy component’s weight and composition to determine the resulting mix.
BHN Calculator (weatherby.dk) – A Brinell Hardness Number (BHN) calculator allowing you to blend two lead alloys by specifying tin, antimony, lead percentages, and weight.
Cast Bullet Association (CBA) Alloy Calculator Spreadsheet – A user-created spreadsheet tool (available on CBA forums) for estimating alloy hardness. While not perfectly precise, it’s considered accurate enough for general use.
Spreadsheet shared on Reddit – A fellow reloader shared an alloy calculator spreadsheet (Alloy12.xls) for mixing alloys to reach desired hardness or compositions.