Preparing Lee molds

[toallmy]

I have found lee molds to be a wonderful piece of equipment to learn mold maintenance and repair with , as well as what to do & what not to do to a mold .
So I would remove the sprue plate and resurface the top of the blocks and the bottom of the sprue plate , after reassembly pay special attention to applying lube around the sprue plate screw , top of the blocks , and bottom of the plate .
Galling seams to do quite a bit of damage to aluminum molds .

[Tatume]

Most of my molds are aluminum, made by Accurate or Lee. They are all going strong after many tens of thousands of perfectly good bullets cast.

[JonB_in_Glencoe]

Thanks for the information Jon. I received an email from Lee stating that the two molds that I’m talking about not having vent lines like the other Lee molds I have say there are fine and to go ahead and use them. However they did not answer my question about them being a old or new design.
Those of you who have Lee molds like JonB and Tatume are these an old design? You are both right they appear to be vent lines but they sure are small.
It just seems odd that if they are an old design that they would still be in stock.

Lee changed the mold block design of the 2 cavity mold in 2013. The mold in your photo has the new "post-2013" mold block design.
I assume that's what you are asking about, as opposed to boolit design?

here is a photo of the old block design, it has horizontal alignment pins instead of pins that are 90º to mold face, like the new style.
https://www.oldsouthfirearms.com/ima...BulletMold.jpg

[Carrier]

Well got to casting with those two new molds and they cast pretty decent bullets. They both have right hand threads for the sprue plate unlike the left hand threads on all the other Lee molds I have but they don’t seem to come loose like the left hand ones always do.