I believe that was with the 357 Maximum a round I have zero experience with that one but my 30’s show no cutting.....Another little toy I seen the other day was a 30 Carbine round loaded with a 200 grain round nose. It was being used in a Suppressed Thompson Center Contender. He was getting 900 fps and was amazingly quiet. His plans are to build a suppressed 30 Carbine.
I stand corrected. It was the 357 Maximum I was thinking about. That Contender round sounds wicked.