Weapon mounting incorrectly?

This has been making me quite angry. My shotgun model mounts onto my player incorrectly. The shotgun's mountPoint is in the correct place, mount0 on the player is fine. The offsets are both set to "0 0 0". However, the shotgun seems to be offset to under the player's feet. The odd thing is, the player's shadow shows the shotgun in the right place.

How the hell did that happen and how can I fix it?

EDIT: Weird. Couldn't think of anything else to try and decided to re-make my bounding box, this time manually. Everything's fine now. o_O