IF you are shooting reloads and IF these reloads are loaded with a light charge, the problem could be the recoil spring. The XD has a heavy recoil spring and shooting lighter loads in it can result in the slide "short-cycling". If the slide does not cycle fully, it is possible for it to eject the empty but not fully/properly catch the next round. The slide would then push the round against the front of the mag and the only direction that the round can go is down into the mag. The XD's recoil spring is heavy enough for it to handle 45 super loads. If your shooting light loads, the recoil spring should be changed to a lighter one. An easy way to see if the recoil spring is the problem, assuming you using hand-loads, is to load up a hotter batch. Bring up the muzzle velocity to 900 fps and see if the problem still exists.
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Last edited by dosei; 06-23-2009 at 04:52 PM.