6x47 is a popular bench rest cartridge and is made from the 222 mag case. The case will continue to be available for some time to come. I'd have to look but I may have some brass out in my garage. When I took off the 222 mag barrel and put on the 223AI I sold about 500 pieces of new brass but I know I kept some in case I wanted to put the old barrel back on.
I'd look for brass on Gunbroker or buy the fully loaded Nosler stuff (if you can afford it) and reload it when it becomes necessary.
I'd look for brass on Gunbroker or buy the fully loaded Nosler stuff (if you can afford it) and reload it when it becomes necessary.