This cartridge also exists in a 8x64mm variant (without the S or any other further additions) intended for a different bullet diameter.

Greater consistency can be achieved by tuning the case capacity to a certain bullet diameter, weight, and velocity that give consistent results.

Neither the bullet diameter nor the cartridge dimensions are compatible.

A .257 bullet has a metric bullet diameter of 6.53 mm.

Nominal bullet diameter was reduced to the current 0.500 inch (12.7 mm) rather than the original .510".

Once the case is sized down, the inside of the neck of the case will actually be slightly smaller than the bullet diameter.

The chamber should be concentric, and the throat sized just slightly larger than the bullet diameter.

Flat-point bullets, with fronts of up to 90% of the overall bullet diameter, are usually designed for use against large or dangerous game.

The actual bullet diameter used in this cartridge is .308 inches.

Using the bullet diameter is unusual in German cartridge designations.