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Thread: Man you guys were right about MP molds!

  1. #1
    Boolit Master



    Join Date
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    Man you guys were right about MP molds!

    Ordered on Sunday received on Wednesday, from Slovenija to Texas in 3 days, I don't get my Amazon things that fast. And the mold, OMG, it's my first brass mold but it was like holding gold in my hand. It's the first HP mold of this type that I've ever used so I curious how it's going to work and choosing which pins to try first, this is all too much fun!

    But first, advise please, how to properly start with my new brass mold. And the HP pins, exactly how do you cast with them?

  2. #2
    Boolit Master Recycled bullet's Avatar
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    Hot and fast. Please read "so I'll be raining bullets".

  3. #3
    Boolit Master Targa's Avatar
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    MP molds are outstanding! I clean mine well with acetone and a clean, brush from my gun cleaning kit. After it’s clean I heat cycle it on a hot plate a couple of times to give it a bit of patina this is suppose to help with the mold break in and to facilitate releasing your cast bullets, I don’t know if this makes much of a difference or not but I do it. Before casting I color the HP pins with a lead pencil to help facilitate the bullets dropping off the pins and then I get the mold up to around 400 degrees on the hot plate while my lead melts in the pot. I would also add to get a diffuser plate to put ove the hot plate and set the mold on, it distributes the heat from the hot plate evenly. I use the one in the attached link https://www.amazon.com/Heat-Equalize...dDbGljaz10cnVl
    Last edited by Targa; 03-23-2023 at 09:29 AM.

  4. #4
    Boolit Buddy
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    Keeping the heat in the pins is key. I use a single burner hotplate with an old sawblade on top for preheating. Mold opened about 1/4 inch and the sprue plate closed.

    Sometimes a propane torch is needed to warm the pins a bit more.

  5. #5
    Boolit Master

    dannyd's Avatar
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    Ordered another Mould from MP on Monday out for delivery today.

  6. #6
    Boolit Master Gamsek's Avatar
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    Lancem, on MP web page you can find instructions under tips&tricks…..

    https://www.mp-molds.com/tipstricks/...-point-moulds/

    Preheating on the hot plate is essential for pins to get and stay hot. Make sure shafts are sliding in and out without any force.

    For HP spins: Pour, weir for sprue to freeze, cut, tap tap on the hinge bolt (mould will start to open) then turn around the mould and tap tap again, with short pins they usually fall out, (longer pins-I push the shafts).

  7. #7
    Boolit Master

    dannyd's Avatar
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    Just got my mould today

  8. #8
    Boolit Buddy
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    Be patient with the break in, you just have to cast with it. Mine was sticky for the first three casting sessions. After pushing through, it casts like a dream. Prior to first cast I did a good cleaning and the hot plate cycle, three cycles. I did not color the pins with graphite, chalk, etc.

  9. #9
    Boolit Master



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    Thanks guys, hopefully in the next couple of days I'll have time to break it in, can't wait! I can do some easy heat cycling right now and have that done.

  10. #10
    Boolit Master

    dannyd's Avatar
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    Pin moulds are painful but do work with time and patience's

  11. #11
    Boolit Grand Master


    GregLaROCHE's Avatar
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    If they have it in stock, you’ll get it right away. I only object to having to pay the same shipping as to the US and I’m only next door. Still, they have good deals on quality molds. If I should buy another mold I will be considering them.

  12. #12
    Boolit Master

    dannyd's Avatar
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    Quote Originally Posted by GregLaROCHE View Post
    If they have it in stock, you’ll get it right away. I only object to having to pay the same shipping as to the US and I’m only next door. Still, they have good deals on quality molds. If I should buy another mold I will be considering them.
    Drive over and pick it up.

  13. #13
    Boolit Grand Master


    GregLaROCHE's Avatar
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    Quote Originally Posted by dannyd View Post
    Drive over and pick it up.
    I actually thought about it just to see there operation.

  14. #14
    Boolit Master
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    I’ll be taking a trip in the area, and, believe me, I’m tempted.

    Though, being a small operation (1-2 people?), I’m a bit hesitant about being a disruption and interruption.

  15. #15
    Boolit Master



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    Hollow point pins can have a burr on them, sometimes.. Chuck in a drill motor and buff them out on a piece of leather or buffing wheel! Doesn't take much.
    Cast HOT!

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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