Ballistics Solver

Quick start

1. Pick a preset (Load Preset) for a common cartridge, or enter your own load below.
2. Choose your drag model — G7 for modern long-range boat-tail bullets, G1 for most factory/flat-base bullets — and type the matching Ballistic Coefficient.
3. Enter muzzle velocity and bullet weight (both on the bullet box, or from your chronograph).
4. Set your conditions (altitude, temperature, wind) and your zero, scope height, and how far out to calculate.
5. Hit Calculate → to build the drop table, trajectory chart, and summary.

Reading the results

• Drop (in) is the bullet's physical distance below your line of sight — how far low it actually hits.
• Come-up MOA / MIL is the dial or hold correction — positive means dial up, matching the app exactly. This is a different number from Drop (in) on purpose: one describes the bullet's path, the other tells you what to turn your turret to.
• Wind columns show how far the wind alone pushes the bullet sideways at your wind setting — spin drift is shown separately and isn't included here.
• Vel / Energy / TOF show speed, energy, and flight time at each range; the engine marks the row where the bullet goes subsonic.
• Use ↓ CSV to download a spreadsheet or ⎙ Print to make a printable range card.

This solver loads the full app engine on your first visit (about 18 MB, cached after that) — spin drift, aerodynamic jump, and 4DOF are on by default. Give it a few seconds the first time.