Older Iron bullet molds (Winchester)

[85MikeTPI]

My friend found a couple old 32cal iron molds at an auction and grabbed them. I poured a few just to check them out and both left heavy wings on the castings from parting gap.

Are these molds just warped and of historical value only, or is there some prep or coating that’s suppose to be done prior to keep the parting lines minimized ?

I cleaned them with a plastic brush and brake clean, but it seemed like I can see even more light through the parting now after cleaning

 

[Allen65]

My friend found a couple old 32cal iron molds at an auction and grabbed them. I poured a few just to check them out and both left heavy wings on the castings from parting gap.

Are these molds just warped and of historical value only, or is there some prep or coating that’s suppose to be done prior to keep the parting lines minimized ?

I cleaned them with a plastic brush and brake clean, but it seemed like I can see even more light through the parting now after cleaning

Just for fun, try heating them up like you would if molding, and see if the gap shrinks or disappears.

 

[85MikeTPI]

Just for fun, try heating them up like you would if molding, and see if the gap shrinks or disappears.

OK yup, that seems to work after pre heating the wings got smaller until almost non existent

One mold has a bent sprue plate, but I can take that off and work it later..

Thanks!!

 

[Triggerfinger]

Hey Mike, the wings make the bullet fly straighter...

 

[Triggerfinger]

Is that from a Lyman 319247 mold? On second thought, no.

 

[Biggfoot44]

I'm not Mike .

But back in the day , the major gun mfg , especially Winchester , offered a combo tool , including a bullet mold , with their brand , as an option with the gun .

My first thought , and presumptive interpretation was that this was such a tool .