SOME STRAIGHT TALK -, PULL UP A COUPLE STUMPS, MEN, AND LET'S TACKLE THIS SERIOUS PROBLEM.., WHAT CAUSES IT AND WHAT YOU CAN DO ABOUT IT_.. ON BLOWN-UP M16A1'S: 4 YOU'RE '"T CURE! s1' Y'know, it could be worth a life or limb or rifle to know all the angles on this -. -whether you're where the action is or not. First, however, let's get one thing clear: It's highly unlikely that it'll be the rifle's or the ammo's fault if one blows up. It's usually the rifleman's--some- thing you do or don't do. And you are the only guy who can prevent it. OK? Now, why they blow up. Simple: If the bore gets clogged, too much pressure builds up in the chamber and/or bore when you pull the trigger... and wham! What-all could clog it up? You name it. It doesn't take much to clog a rifle barrel, that's for sure.