This bad reload was my fault - and the first bad handloads I have ever had. I was trying to make a light target load and obviously went too near the low end of the range. Too bad, because it is a very pleasant shooting and very accurate load.
When I first started reloading, a buddy who was teaching me said don't ever try to go too light or too heavy - stay in the middle of the recommended range. Only time I ever broke that rule I learned my lesson I guess.