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Post by 41freak on Oct 19, 2019 17:11:29 GMT -5
Here are some I cast up during the first heat cycle. I still need to do several more heat cycles and it should throw perfect bullets, also may need to add some tin to help it flow better.  But as expected the MP mold throws great bullets. With my mix in the pot these are very consistent at 346gr-347gr for the ones I checked. As cast diameter is .478 right out of the mold. |
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Post by mart on Oct 20, 2019 17:48:20 GMT -5
That was fast. Paid Tuesday and got it Friday. In Alaska. Wow.
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Post by magnumwheelman on Oct 23, 2019 7:28:42 GMT -5
My credit card went into "suspicious purchase" mode, since payment was out of the country... took a couple days to get that straightened out... but got notice mine should be here Friday
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dmize
.401 Bobcat
Posts: 2,832
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Post by dmize on Oct 29, 2019 9:24:12 GMT -5
I have a GC version and the cavity next to the sprue screw is giving me absolute fits filling out the base. Finally got a decent run last night. I had to run the plate really loose and get the mould hotter than any I have ever had.
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Post by boolitdesigner on Oct 29, 2019 17:56:50 GMT -5
I have a GC version and the cavity next to the sprue screw is giving me absolute fits filling out the base. Finally got a decent run last night. I had to run the plate really loose and get the mould hotter than any I have ever had. Miha cuts to tight tolerances. Sometimes those tolerances are too tight and the mold doesn't vent well. I've had that problem with a couple of his brass molds that way. What I did was take a fine cut stone and bevel the top inside corner of the blocks where they meet. A slight bevel 45 degree bevel is all that's needed down the length of the block half (I usually do both sides)....... no wider on the flat than a vent line or less. Remember it comes off easily, but you can't put it back. |
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Post by flattopdan on Oct 29, 2019 18:43:57 GMT -5
I had taken my name off the list however I received the email that the molds were ready, I didn’t want to leave the maker in a lurch so I bought the mold. Boy am I happy I did, this has to be the best casting mold I have.
I’ve made about 250 bullets so far and shot 30 testing loads for deer season. I’ll be using the cup and small HP over 14 grains of HS 6.
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Post by boolitdesigner on Nov 6, 2019 20:05:32 GMT -5
I have a GC version and the cavity next to the sprue screw is giving me absolute fits filling out the base. Finally got a decent run last night. I had to run the plate really loose and get the mould hotter than any I have ever had. Miha cuts to tight tolerances. Sometimes those tolerances are too tight and the mold doesn't vent well. I've had that problem with a couple of his brass molds that way. What I did was take a fine cut stone and bevel the top inside corner of the blocks where they meet. A slight bevel 45 degree bevel is all that's needed down the length of the block half (I usually do both sides)....... no wider on the flat than a vent line or less. Remember it comes off easily, but you can't put it back. I tried my mold out today. First I tried it as it came with the large HP pin and got the same symptoms dmize got, then I beveled the inside top mold edges and that helped. I got full fill-out when I poured from about 3/4" above the sprue plate into each cavity with a medium long pour using a Rowell bottom pour ladle. This gave perfect fill-out for me. Give it a try............. |
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Post by flattopdan on Nov 11, 2019 21:33:19 GMT -5
I was able to chronograph a couple of loads today.
14 grains of HS6 with the cup and small HP: 1019-1040 FPS
10 grains of unique same bullets: 800-820 FPS
The higher velocity was with the cup HP.
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