Powder Valley has some of those Argentina primers on sale so I picked some up along with some powder. I have many, many of the Genex, they do go bang, no problem there but they are really hard to seat. On my Dillon SDB I'd say around 20% don't fully seat so I have to use my Lee hand primer to finish them. I'm worried about breaking the handle. Some of the reviews say they easily seat like Winchester and CCI so I'm hoping that is true. I'd be more than happy to put the Genex on the back of the shelf and save them for extreme emergencies.