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6 mm AR Turbo 40imp (6mmAR Turbo 40imp)

IBC is in beta. Its accuracy is not yet sufficient to base reloading decisions on. Cross-check every load against published data and proof-test. How we validate.

6 mm AR Turbo 40imp (6mmAR Turbo 40imp) 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.

Published dimensions

Max average pressure4,050 bar ≈ 58,750 psi
Case capacity (water)39.0 gr H₂O (2.53 cm³)
Case length38.5 mm (1.515″)
Max overall length57.4 mm (2.260″)
Bore diameter6.170 mm (0.243″)
StandardWildCat

Catalogued reference values the calculator works from. No charge, velocity, or pressure data appears on this page; loads come from your manual.

Measured accuracy is not published yet

6 mm AR Turbo 40imp (6mmAR Turbo 40imp) is fully supported in the calculator, but the current published validation corpus has no 6 mm AR Turbo 40imp (6mmAR Turbo 40imp) 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.

Run a load

Open the calculator, pick 6 mm AR Turbo 40imp (6mmAR Turbo 40imp) 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 calculator

Nearby cartridges

Accuracy 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.