650 re-sizing issue

[Mike47]

After recently acquiring a new Super 1050, I noticed that all my reloaded .38SC rounds drop into a case gauge as if the brass was brand-new. With my 650, however, any bulged cases are not re-sized all the way down, and I've had to fix any rounds that won't case gauge by putting them through a Redding GRx die. Until now, I thought that the problem had to do with the chamfering of the Dillon re-sizing die - but the dies on my 650 and 1050 are the same. Shell plate measurements also seem to be the same between the two machines. So what's the deal? What could be going on with the 650 that's causing this to happen?

[benos]

Not sure Mike. On the 650, with the Shellplate empty and the handle all the way down, do you have the size die adjusted all the way down so it bottoms out the Shellplate on the ram?

[Mike47]

I adjusted the die so it just touches the shell plate with the handle in the "down" position. I didn't create any pressure there, so the die doesn't push against the shell plate with any force. It's definitely not compressing the shell plate against the platform. But there isn't much play there. When adjusting the shell plate I back the bolt off just barely enough to allow the plate to rotate.

Dillon has now suggested that I put the die from my 1050 on the 650, and see if that changes anything. I'll try that - but it seeems unlikely that the dies are the problem (unless they have changed in some way during the past few years). My 650 toolheads for both .38SC and .40 S&W. are about 3 years old now, and both fail to re-size all the way. The 1050 dies are new.

[Tom S.]

If the shell plate on your 650 isn't adjusted properly, it can cause a problem. I snug mine until I can't move it by hand, then loosen it just enough to allow me to turn it. Then adjust your resize die until it touches the plate enough to remove any play. Let us know what you find out to help the next guy out.