Thanks for the update and got me thinking as I am looking for cartridge solutions for the 375 Whelen Ack Imp I am working on. I will contact Quality and see what they can do to help.
I got some good news tonight from Quality Cartridge. I had called them many months ago and put in a standing order for 375 Whelen Imp brass and they said they would call next time they made a run, well good to their promise they did call and said they made a run and so I now have some head stamped brass heading my way.
The status of the rifle itself is waiting for checkering which should complete soon. Then I will test fire and blue the metal and it will be done. Kind of a long road on this one but I don't move all that very fast anymore.