Sticky opening with a NOE 255 45 cal mold with HP pins

[Leadmelter]

I have had this mold for a few months, cleaned it up as per instructions, and baked it 3-4 times.
Everything started well and then the mold started to stick on opening. It took a few wacks two get it to come loose and then one pin would not release the bullet to the point I needed pliers to pull it off.
Go frustrated and quit.
Need help.
I looked at the alignment pins and it's mate looks fine. I will try again and put some mold lube on the pins.
Any other ideas??
This is my third HP mold and never had this problems before.
Leadmelter
MI

[tomme boy]

Is the mold up to temp? One of my Mihec molds does the same thing till it is up to temp.

[SwedeNelson]

Leadmelter

Check the bushing for a very small bur on the inside of the bevel
Use a case chamfer tool or a rolled up piece of fine sand paper to
clean it off. Have had this happen on other moulds

Bullets sticking on the HP pins is usually a heat problem

I hope this helps
Swede Nelson

[Beagle333]

Check the bottom of it too, if it's an RG mold. I had one that the steel holders for the pins was rubbing the bottom of the blocks and making a sticky opening. (The side with the pins was hanging up on the bottom of the block without the pins)
I applied a little sandpaper relief-work on the top of the metal holders (thinned em down ever-so-slightly) and she practically opens on her own now.:-D

A very thin brass shim/washer between the block and the pin holders would have worked to give the needed space also.... but I went with the relief work.

The sprue lube will help on the pins too. I keep an lube-dampened Qtip handy and wipe the tips of the pins with it, about every 40-50 pours. Once you get enough heat on the pins, it'll go farther between needing any lube at all.

[SwedeNelson]

Leadmelter, Beagle333

The RG brackets can be bent down a very small amount to get clearance also
I try to do it in the shop on assembly so its not a problem
You can also adjust the pins depth a little the same way

Swede Nelson

[JonB_in_Glencoe]

The RG brackets can be bent down a very small amount to get clearance also
I try to do it in the shop on assembly so its not a problem
You can also adjust the pins depth a little the same way
Swede Nelson

Dang, such a simple solution. I have on RG mold where the pin (for a solid) sits a little high for my taste...Next time I cast with it, I'll try adjusting the brackets.
Thanks,
Jon

[Beagle333]

I try to do it in the shop on assembly so its not a problem

Just for the record, the one that I had to adjust was bought used, I have never had to do it to one ordered directly from NOE. Good luck, Leadmelter!

[hanleyfan]

I have had 3 hollow point molds from NOE and they all worked, Now the one I just got I have had nothing but problems with the boolits releasing from the pins, I tried casting low heat, medium heat and high heat on both mold and lead temperature, this was after doing all the recommended prep work on the mold. After 6 hours of frustrations I took the mold pins out of the mold and checked them and low and behold the problem I have found is that all 4 pins had a small bur on the end of the pin. You could feel them if you ran your finger over the end of the pin, I polished them off and put them back together and low and behold the problem was solved.

[captaint]

I am in the habit of polishing all my pins in hollow point molds. Get them hot enough and they will release the boolit. Mike