p.s.-I found out, that 3" case was the Express .458 and all that came about because of poor African powder selection.
Mag box is too short in the Ruger I bet. No need for it anyway.
3.8" ocl, or something to that effect.

BTW-I'm gonna put a silver's pad on this Ruger, because it's just got to have a red pad, no other way for me-hehe
Just not right without it.
And I hear the Ruger pads are junk.