In Larry's defense I will say that the gun problem he has, that I saw, was not caused by a dremel tool. This is the most I can say since this information is protected under the gunsmith-client privilege act.

I'd say that substandard reloaded and even factory ammo cause most of the malfunctions I see at matches. Very close behind but in no particular order are, mag and mag spring problems, internet gunsmithing, incorrect gun assembly, dirty, filthy, unlubricated guns, faulty design, driver error, broken parts, poorly made and designed aftermarket parts, poorly designed and manufactured guns, lack of maintainance. Oh yeh dont want to forget a big one, changing something just before the match.

Ross

Been there, done all of that and more.