ALBin517

The procedure you described is exactly what I do with 9mm and Dillon dies. But the RCBS set has a deprime die AND a full-length resize die. These would obviously both have to come before the powder drop. But with the powder in Station 2 to stay, it seems like my best bet is to deprime and prime all my cases, then put the resize die in Station 1 and load as normal.

I have loaded only 9mm and wanted to start loading 10mm. I got the 3-piece RBCS loading set because the full-length resizer die was supposed to be great for 10mm pressures. I will admit not really thinking it through because I'm not sure now where to put all the dies. I'm thinking I'll have to deprime and prime the whole batch of brass first (like a single stage) then put the resizer die in Station 1, with the set/crimp die in Station 3 and an open on Station 4.

I bought a new 550b a few years ago. The first few thousand, everything ran very well. Since then though, my cases in Station 2 are not always standing up straight. Maybe one in ten, the case will be maybe 10-15 degrees from vertical and the powder funnel will come down on the lip. I’ll push the handle back (up) and usually the case will tip into a vertical position. Sometimes it won't and I'll have to nudge the case. It’s puzzling because I have not changed anything. All I’ve ever loaded is 9mm… same mixed cases… same One Shot… same HP38 even. I took the shell plate off last week and cleaned the heck out of everything, figuring there might be some sort of gunk causing the problem. But no, I put it back together and still have cases that don’t stand up straight, maybe 10% of the time. Like I said, I’ve never loaded anything but 9mm so the pins should be the right size. Primers are flush. So the primers are not pushing the brass over.

I have frequently wished that I could call a tech out to give my 550b a little tune-up. My 550b is the only press I have ever used so I often ask myself, "Is this normal?"

This is what I tried and my primers have fed fine since then... a couple hundred rounds.

I got the press last year and loaded a few thousand rounds through it before these hiccups started.

My primer slide is not reliably coming back far enough to take a primer from the primer magazine. It will work for fifty rounds, Miss one, Work for two rounds, Miss two, Work for forty rounds, Etc. Sometimes, it is obvious when a primer is not feeding because the primer feed stop spring will pop out barely or not at all. Then if I pull the primer slide return spring post back maybe an extra eighth of an inch, a primer will fall into the primer seating cup. But it’s really frustrating and slow to have to nudge it back... and look into the primer seating cup each time. I look around the back and the primers are coming out flat, not vertical. Details: * It happened for about 500 rounds. Then I totally dismantled and cleaned the primer system parts. That was probably a few hundred rounds ago. * 9mm 124-grain JHP, found brass, Federal and Winchester primers, Dillon dies