I read on a website reviewing the CETME that it needed four to five magazines to be "broken in." The author was having the same trouble that I am currently having at about two magazines. I have not yet been back to the range to shoot because I didn't want to damage the weapon. I get a ratio of about 1:2 sometimes 2:3 successful rounds. When the weapon doesn't fire the bolt does not go all the way forward, then when I fire, the firing pin only dents the rounds primer... Like I said I have only fired two magazine worth thus far. Has anyone else had this issue or does anyone have any suggestions before I go and get aggravated at the range again dealing with this. Also does anyone know where to find the synthetic black smooth hand guards for the CETME. I can't stand the black century arms ones with the holes in them; They are harder to clean.