First time this has happened. I loaded a few .270 trials with H1000 but they wouldn't chamber, so I had to pull them to figure out why not. What I noticed, however, was the H1000 clumped up in the case. Had to use a small screwdriver as a tool to break it apart since bumping the case on the tabletop wouldn't release it all. The cannister itself was fine - no clumps. any clues?