My new MP mold came in today, any advice on cleaning and lubing appreciated being this is my first mold. It came with some mold/sprue plate lube.
My new MP mold came in today, any advice on cleaning and lubing appreciated being this is my first mold. It came with some mold/sprue plate lube.
Brass or aluminum?
Ed <><
Aluminum
Tried to upload pics but it wouldn't let me. Haven't quite figured that out yet
All I do is give it a good scrub with a toothbrush and dawn. Then I heat cycle it 3-4 times, making sure to let it completely cool between cycles. This is my process for brass or aluminum. Put a tiny bit of lube on the male side of the alignment pins when it is hot.
Due to the price of primers, warning shots will no longer be given!
Heat cycle at about 400 degrees? And I assume that you leave the handles off if you use a toaster oven, correct?
the last ones I got from miha were much harder to clean then previous ones I've gotten from him. I guess he may have changed lubricants in his machine.
I first cleaned it with carb cleaner but then had to scrub with an old tee shirt and alcohol to get all the cutting lube completely off of it.
Yeah that would be easier. How long do you leave it on there?
I leave it on there for about 20 minutes, then let cool till room temp. I do the same when casting. I turn the pot and the hotplate on at the same time. When the lead is melted the mold is ready. You will need to experiment with the setting on the hotplate. If the sprue takes forever to cool, turn it down a little next time. I also keep a rag with a little bit of 2 stroke oil soaked into it. When I fill the mold the first time, I cut the sprue when it changes color, and before I dump the bullets, I wipe the top of the mold and the top and bottom of the sprue plate with this rag. Go to mp-molds website and check out their tips and tricks. There is some very good information there.
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The last brass one I got, the supplied lube caused some blue corrosion around the alignment pins. The two-stroke oil is a good tip. Also whatever steel tool you use to stir your pot while fluxing, and for skimming, needs to be on the hot plate if it's humid, or the tinsel fairies will be visiting.
Ed <><
BP | Bronze Point | IMR | Improved Military Rifle | PTD | Pointed |
BR | Bench Rest | M | Magnum | RN | Round Nose |
BT | Boat Tail | PL | Power-Lokt | SP | Soft Point |
C | Compressed Charge | PR | Primer | SPCL | Soft Point "Core-Lokt" |
HP | Hollow Point | PSPCL | Pointed Soft Point "Core Lokt" | C.O.L. | Cartridge Overall Length |
PSP | Pointed Soft Point | Spz | Spitzer Point | SBT | Spitzer Boat Tail |
LRN | Lead Round Nose | LWC | Lead Wad Cutter | LSWC | Lead Semi Wad Cutter |
GC | Gas Check |