runfiverun,
Thank you.
I will try to soften the nose on 2 dozen, or so, of the heat treated 160s and see how they fair.
I'm not sure what medium to test them on for expansion. I have used a 55gal rain water barrel at an angle on it's side with a thin plastic seal about the thickness of a plastic ground cloth covering one end.
It stops the bullet and the angle of the drum catches most of the bullet if the seal doesn’t fail catastrophically.
7x57