I would check the depth of how far the shell head fits into the ejector/extractor. I had a hammer gun that would not shoot Winchester 209 primers in the left barrel, tried swapping mainsprings, made firing pin nose longer to no avail. Other primers worked fine. Noble Sport primers are about .001 larger in diameter compared to Winchester primers. There is a tool available that will resize your primer pocket but I don't know if that is worth the effort.
Good luck.

David