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1/18/2012 4:23:17 PM EDT
I've been running my press pretty hard lately, and have noticed that the cases are now not properly standing up straight as they index around the press. As such, I'm have very regular stoppages having to tweak cases to properly enter the dies. I have experienced this once before, and it was the result of a loose shellplate. I have reset the shellplate and retorqued all screws, however, with no luck. Has anyone ever experienced this? Any thoughts?
1/18/2012 4:32:28 PM EDT
[#1]
Torqued?

One thing that can cause sloop with the shell plate is that rim thickness varies and can result in problems.
Are you sure that have locked set screw on the main ram tight?
1/18/2012 4:47:20 PM EDT
[#2]
Have you used the Dillon alignment pin to align the shellplate?

If not, call Dillon, they will send one out free.
1/18/2012 5:57:27 PM EDT
[#3]
Quoted:
I've been running my press pretty hard lately, and have noticed that the cases are now not properly standing up straight as they index around the press. As such, I'm have very regular stoppages having to tweak cases to properly enter the dies. I have experienced this once before, and it was the result of a loose shellplate. I have reset the shellplate and retorqued all screws, however, with no luck. Has anyone ever experienced this? Any thoughts?


I know exactly what you're saying. Call Dillon.  My 9mm shellplate somehow had one bad station on it and I always had to reach back and line the empty case up with the sizer die when it got to that spot on the shellholder.  Dillon sent me a new shellholder and I haven't had any problems since.

1/18/2012 6:23:25 PM EDT
[#4]
Which press?
1/18/2012 7:20:00 PM EDT
[#5]
Quoted:
Which press?


Super 1050. I found some contributing causes but no root. The press had one bolt slightly loose which I tightened. Additionally, as noted in another thread, I was having some concerns about the force needed to swage. I discovered that this was due not to swage rod adjustment, but the fact that the mandrel in the swage die had come loose and "sunken in." Fixing these issues eliminated 50% of the problem. My current hypothesis is that the mounting and operation of the rt1200 is causing the press to operate slightly off balance and out of alignment. I'm still going to call dillon, and there may be one station more at fault than others, but this is the only logical result I cancome to at the moment that explains things consistently.
1/18/2012 8:10:04 PM EDT
[#6]
Which dies are you using? I am too cheap to get Dillon dies with the taper and have to straighten a shell once in awhile when tumbling media kinks things.
1/19/2012 6:54:31 AM EDT
[#7]
I suggest removing the shellplate and checking it on a flat surface. If the swage backup die was set too far down, it can cause deformation to the bottom of the shellplate, as it is trying to actually push the case through the bottom of the plate. When this occurs, it bubbles out the bottom of the pocket slightly. The reverse can happen as well, if the swage rod is set too far up, without the backup rod holding the case down. The top of the pocket will bubble upward, allowing too much play in the pocket.
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