Thread: 7x57 case from 270 has anyone tried

Originally Posted by Double Shot

Why not just buy new Norma 7x57 brass?

It's very expensive. Some of us are cheap. I have a bunch of old .270 around here. Im going to try it. .270 is basically a 7mm already.

I have made it from 8x57 (no problem, just size it and done) I was also making 7mm Mauser from .30-06, because I have a lot of that lying around as well. This is trickier, because then you have to trim it really a lot, so I got a little pipe cutter and would cut the excess of before trimming it to proper length.

The trouble with .30/06, is that once turned into 7x57, it would get vertical splits in the neck after the second firing, so you had to anneal it, then you would get two more firings and then it was toast.
Maybe this wouldn't happen if I used .270 brass.