.480 Ruger is one of 607 cartridges supported by the IBC calculator. Pick a load from your reloading manual, enter it, and the calculator predicts velocity and peak pressure, then gives a verdict against the cartridge's pressure ceiling. It is a comparison tool for working between loads you already trust, not a source of load data.
| Max average pressure | 3,300 bar ≈ 47,850 psi |
|---|---|
| Case capacity (water) | 44.2 gr H₂O (2.86 cm³) |
| Case length | 32.6 mm (1.285″) |
| Max overall length | 41.9 mm (1.650″) |
| Bore diameter | 12.070 mm (0.475″) |
| Standard | CIP |
Catalogued reference values the calculator works from. No charge, velocity, or pressure data appears on this page; loads come from your manual.
.480 Ruger is fully supported in the calculator, but the current published validation corpus has no .480 Ruger loads in it yet, so IBC prints no per-cartridge accuracy figure here. Per-cartridge numbers on this site appear only where the corpus actually contains loads for that cartridge. The corpus-wide results and the method behind them are on the methodology page.
Open the calculator, pick .480 Ruger from the cartridge list, and enter a load from your current reloading manual. Compare variants: bullet weights, powders, charge steps. Start 10% below the manual's maximum charge and work up, watch the verdict on every rung, and check real pressure signs at the bench. The free tier covers single-load predictions and the first steps of a work-up ladder; PRO unlocks the full ladder and the charts.
Open the calculatorAccuracy figures on this page were computed from the published-manual validation corpus (9796 loads across 155 cartridges) with engine v1.1.14 (corpus build da7ac091). Page generated 2026-11-11. Method and provenance: methodology & accuracy.