Looking for cups in the 1.245-1.248" range or so for a pistol caliber carbine can.  The tube stock I want to use is 1.375" with .063" walls ... 1.250" or even a little larger would also be fine as they can be turned down to fit the ID that I want to work with.

Ideally stainless or carbon steel cups for the first few cups, if not all of them.  I want to run this thing hard and weight doesn't matter much on a PCC.  Maybe Titanium; expensive which isn't ideal but can still be run much harder than aluminum.  Aluminum if need be.

Having a hard time finding options, here.  What's out there?

SPC pros come in 1.254
Dino makes 2 types in 1.255
I think YellowDog still sells 1.255