9×25mm Super Auto G

• Name — 9×25mm Super Auto G • Origin — Austria • Type — Pistol • Design Date — 1991 • Parent — 10mm Auto • Case Type — Rimless, bottleneck • Is Si Specs — yes • Bullet — 9.03 • Land — 8.82 • Neck — 9.63 • Shoulder — 10.72 • Base — 10.80 • Rim Dia — 10.85 • Rim Thick — 1.40 • Case Length — 25.35 • Length — 32.70 • Case Capacity — 1.60 • Rifling — 250 mm (1 in 9.84 in) • Primer — Large pistol • Max Pressure — 255.00

The cartridge got C.I.P. (Commission Internationale Permanente pour l'Epreuve des Armes à Feu Portatives) certified in 1991. The 9×25mm Super Auto G is currently (2009) not commercially available and exists only as a C.I.P. datasheet. It might however still used by a few shooters who produce the cases from 10mm Auto brass by reshaping the shoulder and neck, and handloading it with 9 mm calibre bullets.

The 9×25mm Super Auto G has 1.60 ml (25.0 grains) H 2 O cartridge case capacity. 9×25mm Super Auto G maximum C.I.P. cartridge dimensions. All sizes in millimeters (mm). Americans define the shoulder angle at alpha/2 ≈ 19.9 degrees. The common rifling twist rate for this cartridge is 250 mm (1 in 9.84 in), 6 grooves, Ø lands = 8.82 mm, Ø grooves = 9.02 mm, land width = 2.49 mm and the primer type is large pistol. According to the official C.I.P. (Commission Internationale Permanente Pour L'Epreuve Des Armes A Feu Portative) guidelines the 9×25mm Super Auto G case can handle up to 255 MPa (36,985 psi) piezo pressure. In C.I.P. regulated countries every pistol cartridge combo has to be proofed at 130% of this maximum C.I.P. pressure to certify for sale to consumers. The American 9×25mm Dillon pistol wildcat cartridge is probably the closest ballistic twin of the 9×25mm Super Auto G. These cartridges are both necked down 9 mm variants of the 10mm Auto cartridge though they vary dimensionally.