Originally Posted by ngashooter
Try another magazine. Clean the rifle action thoroughly; removing the bolt and making sure the extractor is clean and free to move. The magazine should come apart with just a regular allen wrench. Watch the Ruger video about rewinding the spring for proper tension. Good luck.
Before taking it apart try flushing out with spray cleaner , spray and shake untill the innards run clean then let dry and spray lube with Rem-Oil .
The reason I say this is after taking mags apart I can never get them back to 100% reliability . Rewinding spring to the proper tension must not be one of my talent's.... I've watched the video and tried it a 100 times...just buy a new one if you lack the knack for spring winding .
If the spray clean and lube doesn't work I buy another magazine , I like 10 round factory .