9.5x39mm

9.5×39mm
Type	Rifle
Place of origin	Soviet Union
Production history
Designer	Aleksandr Kolesnikov
Designed	2003
Specifications
Parent cartridge	7.62x39mm
Case type	Rimless, bottleneck
Bullet diameter	9.525 mm (0.3750 in)
Neck diameter	10.3 mm (0.41 in)
Shoulder diameter	10.36 mm (0.408 in)
Base diameter	11.35 mm (0.447 in)
Rim diameter	11.35 mm (0.447 in)
Rim thickness	1.50 mm (0.059 in)
Case length	38.76 mm (1.526 in)
Overall length	56.00 mm (2.205 in)
Case capacity	2.31 cm3 (35.6 gr H2O)
Rifling twist	190 mm (1 in 7.5 in)
Primer type	Boxer Large Rifle
Maximum pressure (C.I.P.)	355.0 MPa (51,490 psi)
Maximum pressure (SAAMI)	310.3 MPa (45,010 psi)
Filling	SSNF 50 powder
Filling weight	16.05 - 16.3 gr
Ballistic performance Bullet weight/type Velocity Energy 19.44 g (300 gr) Full metal jacket 320 m/s (1,000 ft/s) 995 J (734 ft·lbf)
Test barrel length: 415 mm (16.35 in)

History

The brainchild of Novice Wildcatter Aleksandr Kolesnikov of Houston, TX the 9.5x39mm was designed to place the largest diameter bullet into the 7.62x39mm case. The modest case capacity meant that this is an ideal choice for subsonic charges.

Cartridge dimensions

The 9.5×39mm has 2.31 ml (35.6 grains H₂O) cartridge case capacity.

According to the official C.I.P. (Commission Internationale Permanente pour l'Epreuve des Armes à Feu Portatives) guidelines, the 7.62×39mm case can handle up to 355 MPa (51,488 psi) piezo pressure. In C.I.P. regulated countries every rifle cartridge combo has to be proofed at 125% of this maximum C.I.P. pressure to certify for sale to consumers.

The SAAMI Maximum Average Pressure (MAP) for this cartridge is 45,000 psi (310.26 MPa) piezo pressure.

Hunting and sport use

This cartridge has enjoyed some success in use against Javalina. Its broad frontal area, heavy weight and ease of follow-up shots from a Semi-automatic action equate to success against these invasive and highly aggressive predators.

See also

• List of rifle cartridges
• 9 mm caliber
• .220 Russian
• 7.62×39mm
• 9×39mm