I have an XD-9 at least 15 years old. I used it for practical shooting and a general range pistol. I have recently tried heavier rounds with a blunted tip and hollow points. It feeds with irregularity the blunted nose rounds, but the hollow points, no way. With the slide locked back and a magazine inserted, it looks like the round is held crooked, to the left. I stripped the slide off and did the same thing and that round is not straight. Its like the magazine is held crooked. Any ideas would be appreciated!