Hornady LnL AP primer feed problem

[LCFD#22]

The only issue I've had with the priming system on my LnL AP is when I do .223's they seem to shave some brass off and I get a little shred once in awhile in the plunger hole. This happens every 20 rounds or so. Pistols I've never had a problem with. I used a primer hole uniform bit on my .223 and still have problems. Thinking of just getting a hand held priming tool to do them. Sorry to hear of the problems good luck with it.

[1st Cav]

If your press came with the white rod, find a metal nut and super glue it to the top for extra weight to keep pressure 0n your primers. Have a Dillon 550 added a metal nut to the top end to keep constant down pressure on the primers. The press handle movement while sizing causes the primers to bounce some and the rod will stop this

[Quizcat]

Originally Posted by Birddog80

I'm putting my new press together and the primer feed is driving me nuts, it's the LnL AP. I messed with it for a couple of hours I think I finally got it adjusted but every so often a primer jams and you have unscrew the tube and jiggle the shutle to get the primer to drop. I cleaned it and there's not a fleck of dirt or powder on it. Has anyone else had this problem and if so how did you fix it? I haven't called Hornady yet. Do I just need to keep adjusting? Any info would be greatly appreciated.

Before replacing the primer slide, my primer slide was constantly sticking under the primer housing as you cycle the press. The primer slide was often snapping forward when I loosened the primer support tube, and/or the primer housing bolt, in order to free things up, and then it would come crashing into the steel primer ram, which was always positioned just slightly above the primer ram seat as the primer slide retracted. But, the primer slide only malfunctioned when primers were in the tube. The mechanism always cycled perfectly when primers were not installed in the tube.

After hours and hours of troubleshooting this problem, and actually damaging the front/bottom of the primer slide when it snapped forward under spring tension crashing into the primer ram, I requested a new primer slide replacement from Hornady to replace the damaged primer slide, which is what ultimately solved the problem with the primer slide sticking.

Hornady was very accommodating, offering to send whatever parts I felt I needed to not only replace the damaged primer slide, but offering to also send whatever other parts I wanted to assist in resolving the primer feed issue.

In comparing the original primer slide that came with the press, and the replacement primer slide I received from Hornady, I noticed that the slide that came with my press had very little chamfer around the top of the primer hole. Also, the primer slide that came with the press has a black plastic roller. The replacement primer slide has a metal roller, and a higher quality pin.

My LNL-AP was purchased new around August of 2009, but due to time constraints, it sat around in various stages of assembly before actually being operational about two weeks ago. So, sometime between August, 2009 and present, Hornady addressed this issue, apparently to resolve what must have been a very common problem, which I suspect also caused wide spread complaints, prompting them to improve the primer slide.

Now, with the replacement primer slide installed, everything seems to be working perfectly. So, it turns out that this problem can be very easily remedied with just a simple replacement of a defective part. Everything is locked down tight, no loose primer support tubes and/or loose primer housing bolt is required for the primer mechanism to operate properly.

I've concluded that the old primer slide was defective, and that a properly machined primer hole chamfer in the primer slide is absolutely mandatory to accommodate the proper seating of the primer tube. Otherwise, the primer tube will float above the primer slide as the press cycles, which causes the slide to stick in a retracted position as primers orient sideways between the bottom of the primer tube and the hole in the top of the primer slide.

If you're having a problem with the primer slide sticking, contact Hornady, and order a replacement primer slide. They'll send it to you free of charge. They were very accommodating, and eager to assist in remedying any problems I was having.