SDB Primer Misfeeds

[Null N. Void]

[Eyesa Horg]

Refer to the manual and check the cup height etc., be sure the primer tube tip isn't broken. The adjustment for where the cup is under the primer tube, I found easiest to do off the press so you can just see it. Beats tweaking you finally get it  A little cleaning wouldn't hurt her either. 

 

The spring may have broken as well.

Edited November 17, 2025 by Eyesa Horg
Added text

[Edward R S Canby, SASS#59971]

First glance: that press needs a cleaning.  All that debris can cause malfunctions.

[The Original Lumpy Gritz]

You really need to clean that press up.

[Crisco]

Does misfeed mean it fails to feed one, or is it flipping primers over onto their side or upside down?

[Null N. Void]

Flipping the primers.

 

[Dred Bob]

I was having issues with mine flipping / picking up small primers.  The tip was getting damaged and I was going through new tips like crazy.   I finally called Dillon and they were very helpful.   They recommended that I adjust the primer cup height to 1.404".  It worked.

 

refer to section 10.2 in the downloadable manual in the "Troubleshooting section (5)"

https://dilloncdn.com/magento/manuals/sdb-manual.pdf

[Crisco]

Another thing to check is alignment of the primer cup with the hole in the shell plate.  I have had the same thing happen when the cup catches a little on the way up to the cartridge and the little bounce of the cup flips the primer.  

[Null N. Void]

Adjusted the primer cup to spec and replaced the blue tip.  All good now.

 

Thanks