So a few days ago i picked up a new XD40. I really like it, it's a lot better for a concealed piece than my Ruger p89 was. I took it to the range the other day, and had some interesting things happen. First I discovered that the magazine release is incredible difficult to push in with the mag is in there. It takes a good bit of force to drop the mag, unless you press up on the bottom of the mag, then it drops easily. Second, Every now and then, at least once per magazine the gun would jam. The round would become stuck with the bullet itself in the chamber, but the brass would be diagonally lodged between the edge of the chamber, and the magazine (Does that make sense?). And one of the ways to fix this is to tap the bottom of the magazine, that puts the round completely in the chamber. This is my first new gun, so I'm a bit confuse about the 'break-in period'. Do these things sound normal for a brand new gun? I put about 400 rounds through it, and an going to put a few hundred more through it this week. in hopes of 'breaking it in'. But if these sound more like defects, than I'll send it back to Springfield before I fire it anymore. Thanx guys.