so I have a ruger 44 mag carbine. it is tubular mag. I manually close the action put 4 rounds in the tube fine then when I pull the bolt back to load it stay in the open position it seem like the round isn't releasing the bolt. if I manually push the bolt release it closes and I can shoot the round then when the bolt goes back it does not pick up the next round. I've taken it apart cleaned it I don't see any broken parts. any help would be appreciated