.22 PPC

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.22 PPC
Type Rifle
Place of origin United States
Production history
Designer Louis Palmisano and Ferris Pindell
Designed 1974
Specifications
Parent case .220 Russian
Bullet diameter .224 in (5.7 mm)
Neck diameter .246 in (6.2 mm)
Shoulder diameter .431 in (10.9 mm)
Base diameter .440 in (11.2 mm)
Rim diameter .441 in (11.2 mm)
Case length 1.515 in (38.5 mm)
Overall length 2.100 in (53.3 mm)
Rifling twist 1-14"
Primer type Small Rifle

The 22 PPC is a centerfire rifle cartridge developed in 1974 by Dr. Louis Palmisano and Ferris Pindell, primarily as a benchrest cartridge. The cartridge is based on the 220 Russian case which is a necked-down version of the 7.62x39mm Soviet military cartridge. Several companies have made custom guns in this caliber, however no major companies did untill 1993, when Ruger announced their No. 1 V and M77 varmint rifles in this caliber.

Changes from the .220 Russian Cartridge

The changes from the 220 Russian into the .22 PPC include a 10-degree body taper and 30-degree shoulder angle, as well as expanding the neck to accept the standard .224- inch diameter bullet used in the U.S. Cases are made in Finland by Sako or in Sweden by Norma and use Small Rifle primers. Although the 22 PPC is a short, rather stubby case (only 1.51 inches long), it nevertheless develops ballistics superior to some larger, longer cartridges such as the 222 and 223 Remington. The 52-grain bullet can be pushed out of the muzzle at over 3500 fps, placing the 22 PPC in the varmint and small game class. A 1 in 14-inch twist has become pretty much standard for these rifles although 1 in 12-inch twist will sometimes be found, depending on the load and bullet weight.

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