This has me worried. Today we took our guns out to the desert to sight them in. My father in law started first with his AR15 shooting at 25 yards. It shot two times and on the 3rd shot the bullet either exploded in flight or as it came out of the barrel. On the target you can see where the fragments hit the target. No he didn't hit the dirt in front of the target. He said it just sounded funny when he shot it. I checked out the barrel and ran a patch down it to see if any thing was left in the barrel but it came out clean. The empty brass didn't show any bad signs either. I've never seen this before so I'm posting pics of the target and the ammo. This was the only round that did this, the rest were fine. What do you guys think?