bullethead
Member
I was trying to load some light .357 rounds yesterday using Trailboss on my red press. Filled the hopper with powder, gave it a few light taps, threw about a dozen charges, then adjusted it to throw 3.6gn. Loaded up 50 rounds, all seemed OK. Wanted to load up a few at 4.0gn. Readjusted, started to load and noticed that some of them were light charges, some just over 1 gn of powder. Stopped, checked adjustments, dumped the powder, cleaned everything, wiped the hopper and drum with a dryer sheet, and set off again. Same trouble, several light charges. Changed to Unique (4.0 and 4.2gn), and had no troubles. Is the powder bridging? If so, why at 4.0 and not at 3.6gn. Static bulidup? 48* with 50% humidity. I have loaded .45LC on my green press using Trailboss without any issues. Anyone have an idea what is going on here?