I'm sure this subject has been covered multiple times so I apologize. I have been on many forums and none seem to have a search function that actually works well. I just bought my Colt Delta Elite less than a week ago. My first trip to the shooting range I was performing combat reloads (allowing the magazine to drop while reaching for another) like I always practice. I carry my pistol primarily for bear defense so I want to make sure I can reload quickly if necessary. When being charged by a bear is not the time to be fumbling with magazines. Prior to the combat reload drills everything worked perfectly. After the drills, the two magazines that were dropped will feed ammo with no problem but will not lock the slide open after the last round. The third magazine that was not dropped still works perfectly in all respects. Two of the magazines are the original Colt 8 round mags that came with the pistol. The third is a Wilson Combat 9 rounder. One of the Colt magazines and the Wilson are the ones giving me issues. Both Colt magazines drop free but the Wilson Combat will not after being dropped during the reload drill. (So far I'm not impressed at all with the Wilson Combat magazine.) Did I damage my magazines by dropping them? Is it possible to repair the damage? This is the first 1911 style pistol I have ever owned so I've got a lot of learning to do about it. My other carry pistol is a Glock 20. I have done the same combat reload drill countless time since I've owned it and it has never had an issue.