New Molds UNDERSIZED

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BigMan54 posted this 2 weeks ago

I cast some Bullets from a pair of new LYMAN molds a few weeks ago. Went to lube&size them this past weekend. Cast from a #429667 4cav & a #429244GC 2cav. Used LYMAN#2 alloy that I purchased from ROTOMETALS last year.  Put a RCBS .430dia size die into my old LYMAN 450 & started the 1st #429677. Felt no resistence when I pulled the handle down or up. When the bullet came up out of the die there was a thin film of lube coating the bullet. 

UNDERSIZED !  After the same result with 5 more bullets, I switched TP and tried the #429244GC. The gaschecks wouldn't stay on the bullets, the shanks were all undersized. I was using my last batch of LYMAN slip on gaschecks. At $40 bucks a box + shipping, Hornady crimp-on gaschecks are an expensive option for me when I still have a full box of LYMAN. But to get on with it the the #429244GC popped out with a thin film of lube.  UNDERSIZED AGAIN.

The #429667 mold was purchased less than 2 months ago, the #429244GC was purchased about 3yrs ago & not used until now.

The LYMAN#2 alloy was used to cast some LYMAN #429421 & RCBS #44-250-K this past spring & then sized in the same RCBS .430dia size die. No problems, both bullets sized as expected, clean, sharp & smooth driving bands & a well filled lube groove with some resistence on pulling down on the handle to push the bullet into the die.

I sent an email off to LYMAN to see what they'll do about these UNDERSIZED molds. Guess someone at LYMAN got lazy & used  cutting CHERRY'S too long.

 

Long time Caster/Reloader, Getting back into it after almost 10yrs. Life Member NRA 40+yrs, Life S.A.S.S. #375. Does this mean a description of me as a fumble-fingered knuckle-draggin' baboon. I also drool in my sleep. I firmly believe that true happiness is a warm gun.

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R. Dupraz posted this 2 weeks ago

That's why I quit buying Lyman molds years ago. Every one that I have save for the two original four cavities that I got in the mid sixties had to be lapped out. I've become a satisfied NOE customer since. At least I know what I'm getting every time. 

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GP Idaho posted this 2 weeks ago

BigMan54; I second Mr. Dupraz's recommendation and suggest NOE or Accurate moulds. Of all my moulds only two are Lyman, a 50cal. Maxi and a 20g sabot slug. Lyman is infamous for undersized cavities. Now that you own these undersized examples, there is an easy fix. Take the clean out of the mould castings and give them a coat of powder coating. The process is very simple and will bump the bullets up a couple of thousandths with the added plus that you will no longer need a messy lube. This works especially well for handgun bullets. If you would like a few examples or a quick tutorial on the process PM me. Gp

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BigMan54 posted this 2 weeks ago

Well Guys, I was raised on LYMAN molds. H&G too, but 40+yrs ago H&G were out of my price range. I've never had a problem with a NEW LYMAN Mold before. But the last new mold I bought from them was back about 1995. The #429244GC was bought on sale to replace one stolen several years previously.  The #429667 Cowboy Mold was bought by my Chiropractor buddy that I load .44mag cases for his Cowboy Action Shooting. His source for these bullets had dried up, if given the choice I would have tried one of the NOE, ACCURATE or ARSENAL molds. But that's what he wanted. Even though LYMAN discontinued the 4cav they had a few left & I was able to get one through GRAF&SONS. I never expected any problems.

On a good note I got an email from LYMAN to call them this morning. They emailed a form with a return number. I'm sending in the 2 molds & some sample bullets. We'll see how that turns out.

 

Long time Caster/Reloader, Getting back into it after almost 10yrs. Life Member NRA 40+yrs, Life S.A.S.S. #375. Does this mean a description of me as a fumble-fingered knuckle-draggin' baboon. I also drool in my sleep. I firmly believe that true happiness is a warm gun.

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R. Dupraz posted this 2 weeks ago

"On a good note I got an email from LYMAN to call them this morning. They emailed a form with a return number. I'm sending in the 2 molds & some sample bullets. We'll see how that turns out."

 

Good first step. Hope they do the right thing for you.

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JSH posted this 4 days ago

I am another that swore off of anything but one of the custom molds folks. I was on the same lines as others, to much month at the end of the money. So that put a dent in my spending. In the long run, I would have been way better off saving up and buying what I wanted, not what was made for the masses. It would have saved me a LOT of time,energy and frustration. If I just had primers or powder back from a lot of it I would be mo when ahead.

This is not a dink on any one mold maker. I had small and large issues with all of them, depending on design. All of the iron block off the shelf molds I have are good ones. I went through a bunch to get them though.

Neighbor got into casting. I gave him some from a mold of mine. I don't loan out molds anymore. He liked it and ordered one, even though I told him to spend a few extra dollars and go custom. It was in the mail more than it was used. It was within specs, supposedly..........

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jimkim posted this 4 days ago

This is why I only buy used Lyman, RCBS, and Saeco moulds. The older ones, had tighter tolerances. I'll buy new Lee moulds though. If I have to finish machining a new product, it will be on aluminium, and inexpensive.

I think the only way to get true quality now is, to buy from the custom shops like NOE, Mountain Molds, and MP.

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BigMan54 posted this 3 days ago

The #429244GC I bought was used. But recently made, stamped 01-17. Now I why it was being sold. Guess I'll have to be more careful in the future. But the vast majority of folks on ebay know nothing about molds and often can't even understand questions. I just won't by a rusty molds as I don't have the ability to machine mold faces/tops or "beagle" a mold.

Long time Caster/Reloader, Getting back into it after almost 10yrs. Life Member NRA 40+yrs, Life S.A.S.S. #375. Does this mean a description of me as a fumble-fingered knuckle-draggin' baboon. I also drool in my sleep. I firmly believe that true happiness is a warm gun.

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