eightbore, I suspect there isn't a great difference in brissance between RD and Nitro 100. I base that conclusion on the charge wgts. being similar for any given shot wgt. and velocity. The major difference seems to be that Accurate is listing a lot of low pressure loads (including 3/4 oz) and Alliant isn't. I load a lot of Promo for skeet but right now loading mostly Nitro 100 1oz. load for my delicate and beautiful Flues trapgun. I save the 7625 for 16 ga.

jack