Couple years ago I made this SSK cartridge board. Parent cartridge, necked up/down, and formed case
![](http://www.hunt101.com/data/500/CIMG4820.JPG)
Contender
257 JDJ
6.5 JDJ two 14 inch barrels
309 JDJ
338 Whisper
375 JDJ 14 and 16 1/4 inch barrels
445 SM
Encore
257 JDJ 17 inch barrel.
6.5 MD
35-06 JDJ
375-06 JDJ