RE: .366 D.G.W.
Pro-line, The last 308 Norma Mag brass I purchased was from Cabela' s I think. You might want to check them out, there prices are very competitive nowdays. As far as finding 416 Rigby brass, Norma has been doing good with that now, there was a time when it was very hard to come by. I do like the Federal factory stuff too.
AA