Re: Reloading .375 CheyTac.
I went through the same exercise a while back when I got my rifle. It was very tough to gather everything I needed to reload .375 Cheytac. I couldn't find any reloading die sets that are ready to ship for a long time. I tried to order through Cheytac directly, I am still waiting for that order to come through. The same is true for CH4D. I ended up purchasing my die set from Black Diamond Rifle (
http://www.viersco.com/). They made their own reloading dies for .375 Cheytac and .375 Sniptec.
The press I am using is RCBS Rock Chucker Supreme. I got my press in the deluxe kit from Cabelas. You do have to remove the adapter ring at the top of the press to accommodate the Black Diamond custom reloading dies because they are bigger than standard dies due to the size of the case.
For shell holder, you will need RCBS #47 for .505 gibbs. That's the one that will fit since the Cheytac casings (both 408 and 375 CT) are based off that parent case.
One more thing, to set the proper case shoulder bump back, I would suggest using the Digital Headspace gauge from Inovative Technologies. This tool is very useful for your resizing operations. You do have to use a fired case from your rifle as the starting point and bump your case back slightly (instruction came with the gauge).
For case trimmer, I use the RCBS trimmer for 50 bmg and 408 Cheytac with a .375 pilot. It worked pretty well for me. This should get you started on reloading the bad boy. By the way, you may also want to get a VLD chamfer tool since the bullets for .375 CT are mostly solids and VLDs.