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"Two Bit" fix for Lee Priming Tool

After a good "Quarter Century" my old Lee hand priming tool gave up. It was a good old tool and served me well over the years.

I decided to replace it with another Lee. Of course it was a "New and Improved" model. I do like the new square tray over the old round one but don't care for the "elevator" they felt was necessary.

That aside, I suddenly found that I was experiencing more misfires than I ever experienced in my entire shooting life. 6 in one day. The primer strikes were a little wimpy. I then measured the depth that they had been seated. I admit that I haven't paid a lot of attention over the years, just squeeze until you feel the primer seat and don't crush. Well apparently this new tool either has a longer ram or more mechanical advantage because I found all the failed primers to be seated at least .010" deep.

I tried a few new cases and found it to be hard to "feel" the correct depth with the new tool so I started looking it over.

A "lightbulb appeared over my head". I'll add a stop to the lever that keeps the primer from going too deep. I did some measuring and looked for a logical place to place such a limiting device and settled on the inside of the tip of the handle. It would then be stopped by the boss that holds the "elevator" for the primers leaving the tray. Now what to use for a stop.

In searching around I found that the head of a square head set screw had the proper dimensions (3/8" square). Just sawed it off the threaded portion and then J-B Welded it to the inside of the tip of the handle.

When the J-B Weld cured I tested the seating of some primers. Every one measured exactly .005" from the case head. My plan was to grind off some metal if needed with a dremel tool but no adjustment was needed in this case.

A "Two Bit Fix" for a cheap priming tool. Just shows that one should always keep some J-B Weld around. This "job" didn't take any more than a match head size glob of the stuff.
 
I ordered one for a youngster that wants to learn to handload, not knowing that Lee had changed the design. When it arrived, I instantly realized I had add some unnecessary verbage to use to explain how "easy" the priming tool is to use.

"New and Improved"....I think not. :(

Regards,

Scott
 
amlevin,can you post a pic or two as I am not so sure of your reference of where to place the square and epoxy.
 
Correct me if I am wrong (I often am... ;D ), but I dont believe you can seat the primer to deep in a case with the proper primer pocket depth.

If you seat them shallow, you run into misfires due to the fact the cup "moves deeper" when struck by the firing pin.

If you seat them at the correct depth and have misfires, you'll need to look at firing pin protrusion and/or spring issues.

If you reamed your pockets too deep, it can happen with the adj pocket reams out there, then seating the cup too deep may occur.

And I am sure there have been bad lots of primer cups out there to cause this issue also.

In short, I am pretty sure the cup needs to bottom out in the pocket to achieve proper ignition. This has been my practice for 20+ yrs with my Lee, never crushed a cup yet, I dont think the Lee is capable of enough mechanical leverage to do this. But I have short/shallow seated a few at in the early yrs.

Just food for thought.

Rod
 
Nodak7mm said:
Correct me if I am wrong (I often am... ;D ), but I dont believe you can seat the primer to deep in a case with the proper primer pocket depth.

If you seat them shallow, you run into misfires due to the fact the cup "moves deeper" when struck by the firing pin.

If you seat them at the correct depth and have misfires, you'll need to look at firing pin protrusion and/or spring issues.

If you reamed your pockets too deep, it can happen with the adj pocket reams out there, then seating the cup too deep may occur.

And I am sure there have been bad lots of primer cups out there to cause this issue also.

In short, I am pretty sure the cup needs to bottom out in the pocket to achieve proper ignition. This has been my practice for 20+ yrs with my Lee, never crushed a cup yet, I dont think the Lee is capable of enough mechanical leverage to do this. But I have short/shallow seated a few at in the early yrs.

Just food for thought.

Rod

Spot on Rod with everything you said, I agree 100%
Wayne.

P.S the new lee's are JUNK IMHO I had three of them and have gave all but one away,...I should respect my friends more I know but I was afraid the poor garbage man might take it out of the trash and try to use it :o
Wayne.
 
SShooterZ said:
Buy one of these and never look back.

http://www.21stcenturyshooting.com/Priming_Tool.php

It kind of makes one chuckle how he uses Lee parts to complete his "design". 8)

I guess that not ALL Lee stuff is crap.
 
amlevin said:
SShooterZ said:
Buy one of these and never look back.

http://www.21stcenturyshooting.com/Priming_Tool.php

It kind of makes one chuckle how he uses Lee parts to complete his "design". 8)

I guess that not ALL Lee stuff is crap.

I never ask John about this but I believe the reason he did this was because most hand loaders owns a lee and by using the tray and lid reduced his cost of manufacturing his tool by quite a bit, and he was able to charge less because of it, there was never anything wrong with there tray or lid it was the rest of the tool that was undesirable IMO but they were cheap and you could buy one almost anywhere they sold reloading supplies, so that would be my guess without asking John about it.
Wayne.
 
sdneil said:
The new Lee primer is JUNK--look for an old one!!! Wayne is right--we have had this conversation before---Neil

It was the "Old One" that broke and forced me to buy new. The die cast body cracked and the whole top just popped off.

As it turns out, the new one that I "modified" has developed some other problems. I have now added a Hornady priming tool to my "collection" and like it a lot better. Not all that dissimilar to the Century 21 but half the price. Good enough for my needs.
 

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