Originally Posted by geargrinder
I'm not sure I agree.
I ran a piece of 300WSM through my 7mmWSM FL die just to see what it would look like. The 300WSM is on the left, regular 7mmWSM on the right.
It would be a very mild fireform to make 7mmWSM out of 270/300WSM Norma brass.
I was thinking the same thing. I was considering getting 50 pieces of Norma .300 WSM brass just to give it a whirl.
I think if you want to keep the longer neck, which is one of the reasons for the wildcat, that you should have the appropriate chamber, but if you simply want to use Norma brass, (supposedly better brass than Winchester), you could.
Have you shot any that you have done yet?