The thing that really keeps me chuckling over the whole issue of the Ruger "short magnums" {with all their hype, advertising spin, internal ballistic challenges, etc} is that ultimately their whole raison d'etre is just about one half inch.

Heck, if I was to have a rifle chambered in a Ruger Compact Magnum I'd want a Magnum Action so I could seat the longest bullets out as far as possible.