This happened a few weeks ago but I am thinking it might be worth posting about. I sent my first cast rifle boolits. When I did, the boolits would sometimes not come forward out of the magazine when pushing the bolt. They seemed stuck. If I removed the magazine I think I recall that they didn't spring to the top of the mag. I seem to recall that they would if I manipulated them when the mag was removed. If I put the mag back in, I could get them to chamber.
Any thoughts?