Note that Horneber .500 Jeffery brass was used, available back then.
The brass situation is sorry now !
RCC brass for $12 per piece is only twice what Norma brass cost when it could be found previously.
The RCC brass could be made with non-rebated rim ...
Nice to see my photo's from 12 years ago still being used without credit, lol !
Aside from that ...
RCC just filed for Chapter 7 bankruptcy and won't be making brass for anyone anytime soon ...
I have 2.5 year old prepaid orders of brass for my "Wolverine" line on cartridges based on the 500 Jeffery case in 30 cal, 338, 8mm, 358, 375 & 416 ... with a 338 Lapua size rim diameter that won't see production & I'll never see my $cash$ again because Chapter 7 protects RCC from lawsuits for lost $$$