Alliant Blue Dot Smokeless Gun PowderThe powder of choice for magnum lead shotshell loads 10, 12, 16 and 20 gauge. Consistent and accurate. Blue dot powder in stock now Doubles as magnum handgun load.Powder of blue dot powder choice for magnum loadsConsistentAccuratePrincipal Purpose: Magnum shotshell loads, 10, 12, 16, 20 and 28 ga.Secondary Uses:

I don't shoot a Roberts, but picked up the list of Lee's I have for approximately the price of a box of 20 rounds of ammo...So, if there is certainly any accuracy gain to heading that route (and I'd like to learn WHY, If that's so) I'm beautifully willing. For the same rationale I don't head paying out somewhat additional for a thing shaped to 6mm