Interesting that link you posted Homer, heres some "cool" options (specially the last one, for a pump!)They also list .458 SOCOM, ive got a few cases laying around for that for a project ive never gotten started.. If it fits hey maybe i will order from them!

"REMINGTON 7600 - 30'06 length cartridges: 8mm'06, 338'06, 35 whelan, 9x57mm Mauser, 9.3x62, 375 whelan, 400 whelan, .425 Westley Richards"