Yeah, you could be right, yet the fact that a 223 case fits so well into the “die’ has me thinking it could have something to do with bullet seating. The “holder” does not fit easily into the upper part of the die;certainly MUCH tighter than a shell holder would fit into the top of a press ram.Kinda/sorta reminds me of a LEE Ram Prime die (used for seating primers), with that place of top to attach a shell holder! That little thing on the right has me confused, though.
Thanks for the insight! Sure seems like a slow process!The shell holder looking thing isn't a shell holder. It goes in the press ram and there should be a rod with a spring and a cup that fits the hole in it that goes up through the die to seat the primer. There's large and small primer rods and holders. Shell holders should fit the die. Looks just like my RCBS press primer.