Tool
Ballistics calculator
Set a range, read the powder charge and arc — then drill into charge ↔ range conversions with full shell speed curves from the game files.
Charge 4 covers 0–20 units. Effective muzzle speed 0.50 (base 0.7 × curve 0.72). Elevation and apex are visual estimates from the trainer arc — dial the charge from game data, then set barrel elevation in the cab.
Detailed conversion
Every powder charge buys 5 units of range, so the charge you need is the range divided by 5, rounded up. The charge is the same for every shell — pick the shell by its effect and blast radius.
Dial charge 4 to hit a target at 18 units (covers 0–20). Then load the shell for the job.
Fragmentation — Get 1 high-explosive fragmentation shell
blast 0.25 · dmg 1
Prefer a static range card you can scan without typing? The firing table prints the full charge bracket grid — same math, built for mid-mission lookup. Not sure which shell to load? The loadout picker maps each target type to the right round.