If you have the chamber reamer you can make a seater/forming die closer to the improved chamber and work the brass less. The 7x30 Waters sounds like a good idea, on that one you would not need to use the chamber reamer on it.

Gun Broker and several other sources have both Winchester and Hornaday 25-35 Brass. All the usual suppliers were out but many of the more obscure suppliers had it for $33 per 50. A little pricey but all brass is now, there is a fair amount of once fired brass available I assume it is generated by cowboy action shooters. This is noted to have thinner necks so could eliminate neck turning (maybe) and eliminate 2-3 more steps.

Last edited by DBoston; 02/12/21.