westerner wrote on Nov 8
th, 2014 at 3:21pm:
Damascus guns? I stay away from those.
Joe.
Sorry if this appears twice - wireless mouse is almost dead and previous attempt has disappeared.
I said (WTTET) I don't know why. (Well, I do, having seen one of your earlier posts...) but I completely reject your observations. Provided the charge you use is within the limits allowed for by the proof, even a pitted bore is quite safe (within reason).
Damascus steel was used for gun barrels because of its integrity. It is made from two or more grades of steel, forged together. The grades run from soft (malleable) iron to tough carbon steel, and grades between. The best barrels are forged, hardened and then annealed to a bit above the melting-point of lead, where the tougher steels remain hard-wearing, but have characteristics of spring steel.
This is immensely strong, and if it should be overcharged, or the charge fired into an obstruction, the metal will bulge, not shatter. In this case, the strands of the constituent steels may separate, but this only allows excess pressure to vent relatively harmlessly.
Your experience? I would guess it was with a cheap continental (Europe) gun with a barrel made from nasty metal, and the 'Damascus' pattern chemically etched into the steel. This can be done with acid, or by case-hardening preparations.
I have seen one cheap tart with a barrel made from reamed and turned seam-welded tube, and acid-etched rose damascus pattern on the barrel. The stock was quite expertly stained to make it look a lot better than it really was.
Aonghas