I just got my HD 40 SC and have put 250 rounds through her. She is awesome. I usually like to put 100-150 rounds of my personal defense rounds through my gun to make sure my gun will eat it with no problems and to get a feel for it with that ammo. But I am using Federal (which I have always been a fan of) 180 gr. Hydra-Shok JHP (model # P40S1). They are ONLY 27.99+tax for a box of 20. This makes my goal of 100-150 rounds very difficult since I will be broke before I get there. I am afraid to even fire the twenty I got. I was curious if anyone else (who might be wealthier than me) has fired this exact round through their XD and if so did your XD eat it up? Also, this is my first ever .40 cal. And I am not so sure of the grainage, shouldn't I have a lessor grain? I am mostly concerned about over penatration? Is there a better brand? What are your recommendations? I appreciate any and all feedback.