Quote Originally Posted by BWB
I've heard the 257 Roberts brass will last longer, just wondering if anyone has tried it. My plan is to start with the 257 Roberts brass since I'm buying new anyway.
Yes I am using 257 brass for my 6mmRemAI.
I didn't have any 6mm and not any good brass in 7x57.
So I used 257 and created a good tight false shoulder to fireform against.