I have one of the OLD LEE hand primers w/round trays, and an RCBS universal hand primer that I use for small load development work, a LEE bench model for volume. I got a LEE press model one and it seems to work pretty good as well. No misfires or poorly seated primers with any of 'em. The LEE bench model is the more difficult to use IMO due to the crappy folder tray, but it works most of the time.