Hornady LNL AP

[mordecai]

So I have this LNL press and wondered if anyone has a solution to half-deprimed cases?

The spent primer either doesn't dislodge all the way, springs or pierces and is drawn back up into the pocket, but you can't advance the turret with it hanging and there's no way to reverse the shell plate or access under the case.

I eventually wiggle or shimmy the primer loose, or have to pop out the station die and drop in a different deprimer hoping it will be longer or push better...

[Merlin]

Rifle or pistol? Have had similar problems with the "Blue" reloaders with pistol and straight-wall brass. What it seems is happening when I experience the problem is that the decapping pin is actually hanging up inside the anvil arms and sucking the primer back into the pocket. Causes no end of trouble at the primer station - if it gets that far. Usually if the plate won't advance it is due to the primer being sucked back into the pocket. With handgun brass the problem is definitely worse with some brands of brass with Speer giving me the most problems and all nickle brass "seeming" to be more problematic. The most effective solution I have found is to put a long taper on the end of the depriming pin. The taper that works best (for me) is something approximating twice the depth of the primer for the tapered portion of the depriming pin......
If the brass is old, corroded or military type (but without a crimp) it seems to help to polish the brass prior to decapping the primer. This makes primer pocket cleaning (rifle brass) a requirement but...it does seem to help.

Aggravating problem for sure. Hope this helps

[Jason]

I have the same problem every once in a while. Like has been mentioned, some brass is worse than others. I've tried a couple different depriming pins and have tapered one or two to help with some batches of brass, but later that taper is evidently just right to get stuck in another batch. Then I can swap out between pins to find one that doesn't stick. I also sometimes just go ahead and do a double tap at the bottom of the stroke by bottoming the arm out, moving it up a few inches, and then moving it back down to the bottom. This usually pops the sticky primers off the end of the pin and it's easier to do that some fiddle with other things sometimes.