BDJ, for about the last 15 yrs. I've shot nothing but 680 in my Hornets, use to use 40 gr. bullets but now use the 35 gr. Hornady vmax. Like Tobster I don't push them hard, just med.
but they're still explosive at med. velocity even out of my 10" contender and super accurate.
Your right about the UMC cases, they hold a lot more, seperate them from your R-P, WW cases. A full load in the old UMC case will blow primers in a R-P, WW case.
H08