I've put just under 300 rounds through my model 29 "Classic" and never had an issue. Last range visit it died on me. A vertical crack extends from the forcing cone to about 2" down the barrel. The crack originated in perfect alignment with two corners of roughly opposing groves and follows them. Where the barrel is threaded into the gun, the frame let go. The section of the barrel on the left side was totally blown off, I didn't find it. For those of you that know more about the metallurgy of these guns and how they fail......what the hell happened? The cylinder's fine, the brass I pulled out no problem with my fingernails. Oh, and there were no injuries.