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Thread: First MP-Mold

  1. #1
    Boolit Man daloper's Avatar
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    First MP-Mold

    I got my first MP-Mold in the mail today. Looking forward to cleaning it up and getting the pot fired up. First time casting with a HP mold. I have never attached pictures so I hope this works.Click image for larger version. 

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ID:	193718 MP 432-256 starting with the big pins first.

  2. #2
    Boolit Master
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    Very nice! I just placed the order for my fourth MP mold. They are beautiful

  3. #3
    Boolit Man Gamsek's Avatar
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    Some tricks to get better results faster....

    https://www.mp-molds.com/tips-tricks...w-point-moulds

  4. #4
    Boolit Master
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    To help you out, pay attention to the requirement to heat cycle that mold 3-4 times after cleaning before putting the ladle to it. Once it develops a patina, it'll release boolits alot easier. Also, coat the slide pins and HP pins with pencil lead as a lube/release agent.

  5. #5
    Boolit Master
    dragon813gt's Avatar
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    As others have said make sure to heat cycle it. Otherwise if your alloy has any tin you can tin the mold blocks. Ask me how I know about that one The blocks should be a dull dark gold, not shiny and bright like when you got it. And if you don't have a hot plate get one. The mold will want to be run hot. If not you will have lots of sticking bullets and imperfections around the HP nose.

  6. #6
    Boolit Man daloper's Avatar
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    Thanks for the advice. I do have a hot plate to heat my mold to temp before casting. That is one of the first things I learned from here.

  7. #7
    Boolit Master OS OK's Avatar
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    Preheating...the cure for 'Culls'...

    I've used the hot plate for some time now and it makes a difference...but...when I made this simple little enclosure, 'garage' it really made a difference.
    I can measure the heat level at a glance with this cheap oven thermometer. Before, I used the hand held electronic version of Harbor Freights thermometer...it would measure differently at every point I pointed it at, frustrating and which measurement do I believe?
    Now with this simple rig when the thermometer reads 350-400*F. my mould is ready to go on first pour most of the time.
    This isn't my idea, someone posted about these tin cans some time ago...it just took me a while to actually try it...glad I did.


    Click image for larger version. 

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  8. #8
    Boolit Master Lagamor's Avatar
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    I want to build a rig like that badly, but haven't seen a tin coffee can in years.
    Really nice set up OS.

  9. #9
    Boolit Man KMac's Avatar
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    My son has an old coffee can that we put all of our change in and he gets to roll it up and spend it. Guess he will
    have to find another piggy bank now.
    "The law of averages is damned faint comfort, when YOU are the exception." Jeff Cooper

  10. #10
    Boolit Master
    JSnover's Avatar
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    I just got my first M-P today (brass 6-cav 359-135 RNSWC) and it is gorgeous!
    Warning: I know Judo. If you force me to prove it I'll shoot you.

  11. #11
    Boolit Master Gunslinger1911's Avatar
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    You almost hate to pour that nasty, hot lead into something that purdy !!!!

    But, you do, and you get great looking boolets !
    Cogno, Ergo, Boom

    If you're gonna be stupid, don't pull up short. Saddle up and ride it all the way in.

  12. #12
    Boolit Mold
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    Quote Originally Posted by Lagamor View Post
    I want to build a rig like that badly, but haven't seen a tin coffee can in years.
    Really nice set up OS.
    Try a #10 can, bulk purchase of tomato sauce or other vegetable. It's similar to a coffee can.

  13. #13
    Boolit Master OS OK's Avatar
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    Try stopping behind a restaurant or two next time out and about...they use tin cans and put them in the dumpster. Back in my contracting days I used to keep an eye on the dumpsters behind my shop, you wouldn't believe the things you'll find there...yes, I'm guilty...Ima dumpster diver!
    Don't neglect using an old skill saw blade to cover the exposed heat coils, you don't want your mould in contact with those.


  14. #14
    Boolit Master Drew P's Avatar
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    Mexican restaurants are a sure thing for cans.

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Abbreviations used in Reloading

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