Hi Everyone, Last weekend I loaded up about 50 rounds of .223 using Federal brass and Hornady 55gr FMJBT. I pulled the box out earlier today to take a look and noticed one of the rounds had a real problem... The bullet somehow "fell" down into the case. I was stumped because I know I didn't put them away with a bad round. I set the case down a few more times and noticed more rounds exhibiting the same behavior. Here's my unhappy batch of .223's: I realized that if I set them down with authority a few more would slip down into the case. So here's my question: Is this because I didn't crimp them or might I have some other issue with the cases or my reloading setup? The rounds are loaded to 2.200 OAL (case mouth is right at the cannelure). I'm using standard RCBS full length sizing dies. I also have a Lee Factory Crimp Die but I don't use it because I've read it's not necessary when loading for an AR. Jon Wanna kill these ads? We can help!