This is some followup on this .375 Raptor thread. I just received my rifle back from the gunsmith this week. I am really happy with the rifle as far as cosmetics go. The rifle is a short action Ruger 77, tang safety, 18 inch X Caliber barrel threaded with an C Caliber brake. The rifle started life out as a 22-250. I replaced the magazine box and follower with a magazine follower and magazine box for a .308 Winchester. The rifle feeds flawlessly. I built the Raptor because I wanted a short range, relatively powerful cartridge for black bear hunting. I am using CH dies that I purchased used. I have formed my brass using annealed, Federal brass, full length resized without the expander plug and then used a Sinclair .374 mandrel to open the case mouths up. From there it was to the Foster case trimmer to trim to length and then I turned the necks. I have attached the load data that I was able to find on this cartridge. What I have found is that the powders that are listed in this data seem to be difficult to find. I would also like to say that if I had it to do over I would not go the Raptor route, I would prefer to have the case length of the .308 Winchester, so .375-08 would be my first choice. There is a lot of brass to be trimmed off and I see not reason for shortening the case neck. I went with the Raptor because I knew I could get the cartridge to feed in an enclosed box magazine instead of a regular detachable box magazine. I am curious what others on this thread have experienced with this cartridge. One last thing... the data that I have attached was taken from the internet, I have not loaded any ammunition using this data to date, and I will approach anything that I reload with this data cautiously. I totally recommend/caution anyone who is using this data to do the same.
