Work needed on a Lee Mould

Ben

Moderator
Staff member
A Lee mould " could " turn out to be a pretty good mould , IF you're willing to spend the needed time on it.

In defense of Lee, on some of your purchases of Lee moulds, you'll end up with a usable mould as it comes from Lee with little to no work required on the mould , but more often than not there can be problems with a Lee just as soon as it comes from the box. A lot of casters buy from places like MidWay who will refund your $ cheerfully if you're unhappy with your Lee mould.

I recently got a " new style " Lee , 2 Cav. 30 cal. 150 gr. Flat nose, cast mould.
Price was right, around $20 or so ? ?

Disappointment for Ben when the mould arrived, it was casting a .3095 " bullet with a .299 nose.
Just not suitable in my many .30 cal. barrels. Nothing to do but start to work.

My 1st move was to disassemble the mould and debur the edges of the sprue plate. The edges always look like a saw tooth and if left " as is " will in time eat up the tops of the blocks.

Next step was to improve the " as cast dia. " of the bullets. Nothing to do here but spin a cast bullet slowly inside the mould with Clover's Fine abrasive compound until the drive bands were .312 " or so. Slow work, but the Lee mould material is farily soft and will cut pretty quickly. Don't over do this technique, you can easily ruin the mold by removing too much material.

I also wanted .3015" on the nose of the bullet.
Quite a bit of trial and error work allowed me to reach my two goals .

The sprue plate screw that holds down the sprue plate never has the right amount of tension when it leaves Lee. ( usually way too tight, again causing the steel plate to gall the tops of the soft aluminum blocks) .

I drilled and tapped a 10-24 hole in the mould block and made a set screw and installed it. The set screw will allow me to set any amount of pressure on the sprue plate that I want. Something that you can't do when you lift the Lee mould out of the box.

Joy after this was completed, now........the sprue plate swings smoothly without damaging the tops of the mould anymore.

While I was at it, I tapped off the mould handles, cleaned the steel with aerosol brake cleaner, mixed up some slow cure JB Weld and gave everything a good coat of the JB Weld. I don't think these handles will be moving a millionth of a micron in the future.

At the eleventh hour, I also decided to remove the gas check shank, I now have a 152 gr. plain base mould that I can size to .311" and have a .3015" nose. It is a great shooter ( and a cheap shooter ! ! )

I realize that after reading all this and looking at the photos that many of you will say, " Why spend $20 on a mould and then have to do all that work ? "

My answer would be , " Some people don't have the $ to buy a Mihec, an NOE or an Accurate mould ( all GREAT moulds , no doubt ...) Some will be lucky in this tight economy if they can get themselves a few Lee moulds. A bit of your time and very little money can " fine tune " them so that they will be very serviceable moulds for a long time.

Ben



Using the JB Weld technique, the ferrules won't be moving, neither will the wood handles be moving in the future. ( both are fairly common problems with all Lee moulds )




Here are the bullets from the mould, lube rings filled with Ben's Red, and then rolled in BLL.
All drive bands mike .311" and the nose mikes .3015 " .



 
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Ben

Moderator
Staff member
S Mac,

Maybe it will be a help to a fellow caster. I hope so.

Thanks ,
Ben
 

JWFilips

Well-Known Member
Ben,
One of my first rifle moulds was a Lee 329-205 Which I bought for 17.50 I had a very worn 98 Mauser That I wanted to make shoot again. It was a J.P. Sauer und Son so I thought I should bring it back to life.
The barrel was so bad that I decided to fire lap it. I had samples of industrial diamond grits that I had left over from a photo shoot I did for an abrasives company. So I made use of them and got the barrel pit free and looking brighter then dark. So after all that; I slugged the bore and did a pound cast and found out that I now needed a .332" bullet! My alloy already dropped at .330 So I did that very thing, and spun up bullets with fine abrasive in the mould & now it drops .333 -.334 Works great & I didn't mind the extra work

I'd be interested in hearing how you did the nose vs. the overall body
 

Ben

Moderator
Staff member
Jim,

I cleaned the mould of all abrasive compound 1st.
Then I put a light coat of abrasive on the nose area only of the bullet.
I then spin the bullet for about 15 seconds and open the mould.
If any abrasive had moved rearward to the drive bands, I'd clean that area and repeat.

The object is when you reach your optimum drive band dia., try hard to keep any abrasive off the drive bands.

I stop periodically , clean the mould and make 5 cast bullet samples.
Mike them and make a decision on what to do next...........
Go slow, stop and make " test cast ", it is fairly easy to over do the process.

Ben
 
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smokeywolf

Well-Known Member
Although I don't yet own a Lee mould, that doesn't mean I won't in the future. Good to know what to look for and how to fix it.

Retirement often calls for ingenuity and resourcefulness to get what you want with less expense.

The results of your efforts appear to be right fine looking plinkers.
 

KHornet

Well-Known Member
Ben, I have that mold, and with mine it drops about 311-312, and beagled it drops 314-315. I have shot it accordingly in 30-30, 308, 7.5x55, 303, and in 7.62x54R. All shot well with loads of 2400, and in the 1800-2000fps range. It is particularly accurate in my 7.5Siwss.
 

Ben

Moderator
Staff member
Compared to some of my moulds that throw 200 - 247 grs., it is a lead saver also.

Ben
 

fiver

Well-Known Member
I also make the handles a permanent attachment. [sometimes with 2 part epoxy or two part putty whichever I have handy]
then I wrap them in grip tape this helps me manipulate the mold and strengthens the handles a little more [from impact]
in case I drop the mold or something.
 

Ian

Notorious member
I'm too lazy to mix epoxy for Lee handles. Since I save all the leftover dregs of RTV silicone tubes that the guys at work throw away I just grab one, knock off the handles and squirt some down in there, maybe hit the tangs on the bench grinder to rough them, spray off with brake cleaner, and poke them back together. The ferrules get hot, so I like to wrap them in Mule Tape.
 
F

freebullet

Guest
Nice work and write up Ben.

I've got a few molds that need your tactics performed.
 

Ben

Moderator
Staff member
Thanks freebullet ,

I assure you " If I can do it, anyone can do it ! ! "
 

Harry O-1

Member
I do much of the same thing with my Lee moulds, particularly locking the sprue plate screw. One more thing I do is the change the bolt on the handles. They use a coarse thread bolt with a standard nut. After they put them together, they press a lock on three of the nut-flats to lock it in place. It is usually too loose for me. When that happens, it usually does not close exactly square without some jiggling. It is impossible to adjust the nut because it is only locked in that one position. Moving it in either direction makes it looser.

I get a replacement fine-thread bolt from the hardware store (I think it was 3/8" x 24 or 28 threads) with a matching all-metal locking nut. Do not get one of the nylon locking nuts. About $1.50 or so. Then I put them together. They can be tightened or loosened when hot or cold whenever needed.
 

Ben

Moderator
Staff member
UUUmmm, now that sounds like a good mod. to a Lee mould, I'll be heading to my local H'ware store on Monday.

Thanks,
Ben