Just a quick compare of the four most common loads that were on my bench at the time (9mm, 5.56, 5.45 and 7.62), and the new hard casts from a couple molds I found cheap. These .458 will be feeding my .458 SOCOM upper once all the parts have been purchased and assembled.

I figure I can make a jig to drill out the nose of the 500gr and make an ad hoc hollow point.