RE: Springfield XD 45 ACP- I shot mine!
Sounds likethe ammo is the culprit. I have seen it happen to many "stock" 1911's when shooting hollowpoints. Assuming you plan to use the gun for self defense, I would practice with FMJ's and pack some DoubleTap HP's. My Glock 21 has always fed hollowpoints perfectly. The XD should do the same.