Thread: Reloading 577/450

The SPANZ cases are turned cases and are necked on the outside but bored straight on the inside , so no problem with pressure build up pushing on the shoulder . Beer mats soaked in Bees wax make excellent wads , they suck up the melted wax . The original 577/450 ammo I have pulled to pieces uses a paper wrapped bullet , card or horse hair felt wad and space taken up by cotton wool