Lead Loadmaster primer feeder troubles

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Hi, I'm new to this forum, but have been lurking for over a year as I learned to hand-load. There's a wealth of good information here.

I am pretty much up to speed with the Lee Loadmaster, aside from lingering primer feed troubles. I load mostly .357 mag and .45 acp, and a bit of .44 mag. When I'm not having primer feed troubles, I can load, oh, about 300 rounds per hour including the time it takes to supply the brass and primer hoppers. It seems like a terrific piece of gear for the money.

Once I learned to put the sizing die over the primer position, my plastic primer feeder parts started lasting a lot longer. The large primer feeder seems to have very few problems now, and lasts a LONG time. But the small feeder is not lasting long at all. Typically 300 to 600 rounds for me. Maybe 1000 at the most. Eventually, I start getting a lot of mis-feeds. Missing primers, flipped, sideways, and so on. It seems that I need to replace the top and bottom portions of the feeder tube (trough) and the slider as well. Replacing just one part never solves the problem. With new parts, I get pretty much 100% good feeding until, well, until I don't. The problem seems to come on abruptly, and the only way to fix it is to replace the three parts. Springs rarely go bad. The rotating part that moves the slider when brass is present NEVER goes bad for me, though I hear others have problems with that part. All in all, I'm spending nearly as much on primer feeder parts as I do on primers!

Recently I needed a new supply of parts, and found that you can't buy them individually now. They come as an assembly including the top and bottom of the tube (trough), the slider, the rotating slider pusher, screws, and o-rings. It's not much more expensive this way, but the parts themselves have been re-designed. The tube is no longer gray; it's black. And the shapes and sizes of some features have changed. Now here's the real problem. I get a high percentage of mis-feeds (flipped over or sideways) even with a brand new assembly! And the press frequently locks up from sideways primers.

Does anybody know what's going on? Might there be something wrong with my press, my setup, or something? Why did Lee change the design in the first place?

Thanks in advance.
 
Thanks Puddin99. There sure is a lot of info there on this new primer assembly, and now I know the problem is not me, my press, or my setup. The original design had it's share of problems but the re-designs up to "Gen 3b" have folks swearing to hoard their supply of original parts to their dying day. I don't have a solution, but I'm not alone. I need old style parts, and they're no longer in general distribution.
 
some hints I've picked up from lee and my own experience: nickel plated primers slide better. a primer pocket that has a little crimp or is slightly off can cause the primer to cant as it goes in, get smushed and screw everything up when rotated to the next stage. Same holds true for for some reloading media stuck in the primer pocket.

I am sad to hear they have changed their already......weak design to be even more problematic, because priming issues aside, I just love that press to death.
 
Miss Bea, I have never found the need for a size die in station two, but do use an m or flare die there on some of my turrets. One thing you always must do especially when changing calibers is make sure the case retainer is set to what ever caliber you are loading in station two and make sure it's tight. The only time i ever have problems with the priming system on mine is if i let brass with crimped primer pockets sneak in the collator.

As mentioned make sure no tumbling media gets in the priming system as it would surely cause problems including broken sliders. I recently did a test and ran several thousand very filthy 9mm cases through the press with a decap only die installed and i intentionally left the primer system installed and when i was finished i removed the priming system and disassembled it and the slider was just about shot. Make sure you run clean cases through the press.

I don't know what else i can tell you as i have loaded many thousands of rounds of several handgun and rifle calibers on mine and have only broke one slider and that was because i changed the shellplate and didn't remember to pull the primer slider lever back before i started loading. If i accidentally put cases in with crimped primer pockets i will crush a primer or two, but as long as i keep the system (brass) clean and the retainer set and tight i never have problems.

That generation three priming system is supposed to prevent you from being able to crush a primer slider. If you have a gen. 2 system Lee will send you a gen 3 just for the asking and they do have a two year warranty so if you have problems with it they will replace it. I have never used a gen 2 or 3 system as i have found the old system perfectly reliable.
 
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