Buy Prvi Partizan  300 Winchester Magnum Brass.  Prvi Partizan is offering a wide range of cartridge cases for hand loaders. These components use high quality raw materials. The cases are tested in a modern laboratory with stringent quality control during the entire production process. These characteristics will provide for the assembling of accurate and safe ammunition. The cartridge cases of PPU can be reloaded several times, without losing its quality. New, unprimed brass.

Brass Preparation: With bulk rifle brass you may sometimes notice a few case mouths are “out of round” or slightly dented below the shoulder. Brass manufacturers are aware of the case cosmetics and have worked to mitigate it, but due to equipment design, denting may still occur.

To straighten the case mouth, run the case part way into the sizer die and let the expander ball straighten the brass.  To prevent the case neck from stretching, be sure to lubricate the case neck inside the case mouth.