According to Winchester, it stands for "high-strength". Others might suggest it stands for "horse-sh**". (not horse-shoe) It's really a pity. The bean-counters running the company have taken the original AA, compression formed shell, the standard that everyone else tried to match, and changed it into a shell that many shooters just toss, like Rios, Federals and other not so desirable hulls.

> Jim Legg <