I made 50 more pieces of brass out of 7mm remington mag just using the sizing die, no problem.

Has anyone used the 173 grain hirtenberger bullet for hunting? I want a good timber load. I thought it might be too long for the 1:12 twist but to my surprise it is actually shorter than the 154 grain hornady spitzer. So I don't see why it won't shoot as well or better. Don't know how well it is constructed. If it is designed for the 7mm Mauser it might open a little too quick at 7x61 velocities.