Daryl,
Accurate roundball loads are the ultimate goal for the Mossberg but it will have to wait until next year as time is running short for good load development.
Gun deer season in Iowa starts in 5 weeks then the next weekend I'm off to Tennessee for rifle deer season.
Squirrel hunting is just starting to get really good around here and pheasant season starts Saturday. So you see why roundball load development must wait.
Oh yeah, work also gets in the way of all the above, but it pays for it all so I quess its not all bad.