Took my Shield to the range for the first time today. Shot great, until round #55 got stuck. Round 54 fired and ejected normally, the gun did not go fully into battery. Slid the slide back, and a case came out, no bullet, primer not hit. The bullet was stuck in the chamber. Got the bullet out easily. So, what happened? There was unburned powder in the gun. I hope this is the right section for this. Was factory Blazer ammo.