.22 PPC
.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 until 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.
See also
External links