Pampurrs
Pampurrs
42 posts
Joined September 2016

Spent primers escaping

I have an issue with some of the spent primers not making it to the catcher. I'm not sure what it's called but it's the metal thing with the spring that catches the spent primer and drops it into the spent primer cup.
I can count on at least ten out of every hundred spent primers that I punch out of the brass bouncing around and landing on the floor or on my bench, never making it to the "catcher". It's not a serious malfunction, but enough to annoy me.
Is this a common issue? Is there a fix for it?

Thanks
dillon
Administrator
dillon
3,076 posts
Joined July 2007

RE: Spent primers escaping

Is the cotter key that the spent primer catcher pivots on bent? That could cause this. Replace this cotter pin with a small safety pin.
Pampurrs
Pampurrs
42 posts
Joined September 2016

RE: Spent primers escaping

The cotter pin doesn't appear to be bent, and it operates freely. I watch it open and close as I raise and lower the handle, and when I flick it with my finger there's no resistance.
dillon
Administrator
dillon
3,076 posts
Joined July 2007

RE: Spent primers escaping

Does the stamped metal catcher pivot enough to close off the opening at the bottom?
Pampurrs
Pampurrs
42 posts
Joined September 2016

RE: Spent primers escaping

The thing is, the spent primers don't even make it to the catcher, so it's irrelevant. They seem to just pop out and go bouncing around in various directions.

But to answer your question, at the time that the deprimer pin pushes out the spent primer, the upper mouth of the catcher is wide open and the lower is closed. The catcher appears to be functioning properly.
ASK712
ASK712
6 posts
Joined August 2013

RE: Spent primers escaping

I have had this same problem in the past on pistol brass. I found the spent primers get stuck on the decapping pin and then when the pin snaps back into place the primers will pop off and sometime fly to the side and onto the floor. I tried slightly chamfering the decapping pin end but it still would happen occasionally. I also found crimped brass can cause the same.
Pampurrs
Pampurrs
42 posts
Joined September 2016

RE: Spent primers escaping

Sounds like this is just a design flaw on the part of Dillon Precision. I guess anyone who owns a 550 just has to get used to picking up spent primers all over the floor after each loading session.
Other than this annoying flaw, I still like my 550.
dillon
Administrator
dillon
3,076 posts
Joined July 2007

RE: Spent primers escaping

If primers are getting wedged onto the end of the depriming pin, use medium grit sandpaper to round off any sharp, square edges that can dig into the interior of the spent primer.
Pampurrs
Pampurrs
42 posts
Joined September 2016

RE: Spent primers escaping

I put in a brand new depriming pin. I'll see if that helps on the next batch.

I'm going to the Dillon store tomorrow to pick up some items, and I'll show them the pin I just took out to see if they can spot any problems with it.
Pampurrs
Pampurrs
42 posts
Joined September 2016

RE: Spent primers escaping

The new pin didn't improve anything. The catcher is opening and closing just fine. I can watch as the spent primers hit the edge of the catcher and bounce out instead of going in. Just a very poor design.

I'll just have to resign myself to picking up dozens of spent primers off of the bench and floor after every reloading session until Dillon Precision goes back to the drawing board and redesigns this mistake.
dillon
Administrator
dillon
3,076 posts
Joined July 2007

RE: Spent primers escaping

Pull the toolhead out of the frame, and look down through the hole in the platform where spent primers go. Does the chute completely travel past this, or is an edge visible? There is some play in the bolt holes on the casting, you might need to tap this part to the left so that primers don't hit the edge of the chute.