Greg,
I read what you posted 4 times. Try reading my link from the real cryo company. They ain't 300 below.
www.metal-wear.com/Theory You heat a CM or SS barrel to the temps you mentioned and it will anneal the barrel.
To the other fellow, I believe I mentioned the only lead bullets that I shot were for plinking with my 458 Lott, my Grandson's 454 Casull, and my 22 rimfire. I have only watched BPCR matches. I have not a clue as to what Swiss and APP means.
Greg, I will reiterate, most people, barrelmakers included do not have the equip. to do a true deep cryo and couldn't charge what it would cost them to do an effective job.
You may question Ernie next time you talk to him.
