Quote: escuse me, what is the 577 VSRE? some variant of the 585 Nyati
This cartridge was invented by forum member xausa in about 1973. The name stands for Very Short Range Express. It is basically a Nyati Short, based on the Nyati case with a brass length of 2.5" so it can be used in a stand length action.
This post tells about the cartridge and a project I did with one of my two rifles in this caliber.