Tuning Help! Problem with cocking lever!

I loaded 5 pellets in the magazine. DAR .17. Inserted magazine, pushed cocking lever forward, pellet started forward and stopped. I applied gentle pressure but nothing moved. Pulled cocking lever back, magazine is stuck. Passed a .15 plastic trimmer line through the barrel and pushed and wiggled the magazine at the same time. Line went through magazine. Removed the magazine, pushed line in until I could see it in the receiver. Pulled line. Cocking handle will go forward until the large part of the pellet probe enters the throat of the barrel then stops. But cocking lever is not all the way forward. Also I don’t know where the pellets went..
Light does shine through the barrel.

All helped appreciated!

I have a call in to DAR and waiting for a response.