I thought about buying and necking it down or up for the 270 and 300, everything I read said it was not with it. Now necking down 300 WSM to 270 or vise versa was a different story.
I came here to share this as well. I’m waiting for a 8400 Montana 7wsm to arrive at my FFL, but in the meantime I found brass, dies, and TTSX bullets all at Midway. The RCBS dies are on clearance at $21.