Path: utzoo!utgpu!jarvis.csri.toronto.edu!rutgers!tut.cis.ohio-state.edu!att!cbnews!military From: portal!cup.portal.com!mmm@apple.com Newsgroups: sci.military Subject: Tracer Bullets Message-ID: <7955@cbnews.ATT.COM> Date: 5 Jul 89 12:37:39 GMT Sender: military@cbnews.ATT.COM Lines: 6 Approved: military@att.att.com From: portal!cup.portal.com!mmm@apple.com How do tracer bullets work? I've heard that the guns on WW2 aircraft would alternate tracers with other types, like armor-piercing. What is the sequence of types?