21st century Priming tools can have a tray or alps for feeding or can have mechanical stop to control depth. I own the mechanical stop variant it's pretty well made. That said, primers stop when they're fully seated so what does it really buy you? Try priming 1,000 rnds of .45 ACP and get back to me.
The problem with the tray system is it must have a 1-primer stop or you run the risk of castrophic primer tray detonation. So the goes the 21st century tray setup.
The best priming tool I've seen is the Dillion primer feeder found on Dillion progressive presses. It's safe, fast and consistent with an attentive operator. I'm considering upgrading my single stage competitions loads to a 550/650 with a Uniqtec CNC die plate.
The problem with the tray system is it must have a 1-primer stop or you run the risk of castrophic primer tray detonation. So the goes the 21st century tray setup.
The best priming tool I've seen is the Dillion primer feeder found on Dillion progressive presses. It's safe, fast and consistent with an attentive operator. I'm considering upgrading my single stage competitions loads to a 550/650 with a Uniqtec CNC die plate.