Has any one try'd the new Trail Boss pistol powder by IMR ? They say it will fill the case better for us that want to shoot lite loads with cast bullets !

I got to talk to Chris Hodgdon at the SHOT show about this powder. He says it's great in handgun cases, up to maybe 454 Casull. Not useful in rifle cases though. I'm looking forward to trying some in the 44 mag to duplicate 44 spl loads with the bigger cases. It's interesting looking stuff, kind of like very small Cheerios cereal.