[3][4] This cartridge's accuracy is produced by a combination of its stout posture, being only 31 mm (1.22 in) long, and aggressive shoulder angle of 30 degrees.

To obtain maximum accuracy, bullet weight and form are matched to the rifling twist rate of the barrel.

Recently, European cartridge manufacturers Lapua, Norma and SAKO have begun making 6mm PPC brass.

During its early development, accuracy experts noted that perfectly concentric thicknesses of the cartridge neck were beneficial in aligning the bullet with the bore.

Most 6PPC chamber reamers are ground with a tight neck section to create a cartridge with a concentric fit and consistent neck-to-chamber clearance.

Paraffin wax is then melted into the lid of a jar and pressed it over the neck of the cartridge to seal it.

As is common with competition cartridges, precise handloading, a good rifle, and practice make it possible to shoot tight and consistent groups.

[7][8] As with many competition rounds, variations develop and the PPC family of cartridges has served as the foundation for many.

The .30 Walker was created for benchrest score shooting and has yielded impressive results with performance close to the .30 BR.