Originally Posted by bmyers

Could be riding the slide. The Shield has what I would call a strong spring because of the size of the gun. My wife can rack the 9c much easier than the Shield.

Are you having the issue just on the first round that you are trying to chamber or is this happening on multiple rounds while you are firing the gun? Based on your statement, I'm making the assumption that it is happening just when you are trying to manually cycle the gun. If this is true, hold the gun closer to you (still pointed in a safe direction), hold the slide with your non-dominant hand and push forward with your dominate hand. (Basically instead of using your weak hand to pull the slide back, you are using your strong hand to push the gun forward while the slide is being held in place.)