I dont think its gonna work.....
6.5X284 .500
300 WSM .555
300 RUM .550
SOCOM .538
D.....at the risk of sounding pessimistic...I'm thinking the really easy way to do the .458...Get with Huntingtons or RCBS and buy .458 X 2" dies and headspace off the belt. The .450 Alaskan also comes to mind but thats a rimmed case.
If you are good at building dies the WSM's and the RUMs could be necked down without much issue, but there won't be much shoulder and there will be less volume (believe it or not). I sectioned the WSM,RUM and SOCOM brass and was surprised to see the SOCOM at SOCOM length was the most voluminous.
Why isnt Starline available to the UK? I thought you guys were "friendlies"?
|