It’s a hand load proposition only. Dies are custom if it doesn’t come with them. His 50 cal cartridges were based on 505 Gibbs brass that has been shortened. If you don’t want to do a fair amount of brass prep don’t buy it. Although if it’s a Gil Van Horn or Ryan Breeding built rifle it’s a hell of a nice rifle..I saw one for sale in an auction and wondered what would be involved in procuring ammo.
Congrats, a very nice rifle!well, I just bought the 416 Van Horn custom rifle by Walter Abe - is this the one you were talking about?