"Black Star craze"
Black Star was using what they called a super stainless which was S 700. Actually Lothar Walther was making the barrels to BlackStar specifications. I'm not sure what the hardness was on the Rockwell C scale of the stainless is.
I don’t believe that Black Star was hand lapping the barrels instead they use some sort of electro-chemical bore polishing technique. Which to this day they have it patented.
Back during the "Black Star craze" I bought two of there barrels in 6mm 1-14” twist HV taper. I got them chambered for my Panda HV in 6PPC .262NK. I though that the barrels shot ok newer good enough to shoot big match. They were a bitch to clean. To this day I still have both of the barrels “low rounds” i'm going to use them for ground hog hunting some day.
Black Star still sell barrels: http://blackstar-barrels.com/
[ 12-17-2002: Message edited by: mbianchini ]