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Thread: I must have "magic" water. . .it adds 12 BHN !!!

  1. #1
    Boolit Bub
    Join Date
    Jul 2018
    Location
    Florida's Nature Coast
    Posts
    46

    I must have "magic" water. . .it adds 12 BHN !!!

    I received my new Accurate mold yesterday and wanted to see how it would cast. I grabbed a half dozen COWW ingots and put them in the pot and turned it to 750 degrees. After preheating the mold and about 5 castings things started looking good. I ran several batches and was satisfied with the results. I did 10 air cooled and 10 water quenched (straight from the hose into a 2.5 gal. pale) and this was at 6:30 this morning. At noon I wanted to check the BHN of each type of boolit with my new Lee Hardness Tester. I slab sided each boolit, the aircooled came in at .066 which is 11.8 BHN. . .pretty darn close. I then tested the water quenched and it came in at .047 which is a whopping 23.8 BHN!!! I did 3 more tests on it and they were all right there. Is this possible, to gain that much BHN by just water quenching? I have a well and my water tastes great, no lime or hard water deposits, white clothes come out bright white from the wash to dryer. This is way harder than what I'm looking for, is there something I missed?

  2. #2
    Boolit Master


    fecmech's Avatar
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    Mar 2005
    Location
    Buffalo NY area
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    3,771
    No magic, water quenching WW's run in the 18-20 range. The hotter they are out of the mold the harder they will be when quenched.
    "Of all tyrannies, a tyranny sincerely exercised for the good of its victims may be the most oppressive. It would be better to live under robber barons than under omnipotent moral busybodies. The robber baron's cruelty may sometimes sleep, his cupidity may at some point be satiated; but those who torment us for our own good will torment us without end for they do so with the approval of their own conscience."
    - C. S. Lewis

  3. #3
    Boolit Master
    Join Date
    Jul 2008
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    2,726
    Maybe high antimonial water.

  4. #4
    Boolit Bub
    Join Date
    Jul 2018
    Location
    Florida's Nature Coast
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    46
    What do you think a 50/50 of COWW and SOWW water quenched would turn out to be. . .or even 75/25? I'm wanting to get around 16 to 18 BHN (that seems to be a magic number BHN for accuracy in two calibers I load for) and I have on hand the above two types of alloys. Anyone have a good recipe for this?

  5. #5
    Boolit Master Tenbender's Avatar
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    Jan 2015
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    Southwest Virginia Mountains
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    I have had water dropped wheel weights that I couldn't get through the sizer. They checked 23 BHN.

  6. #6
    Boolit Master
    Join Date
    Dec 2013
    Location
    St.Germain, WI
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    450
    Years ago I broke the handle on my Lyman 450 trying to size water quenched .40 cal. they were so hard.
    The only amendment the Democrats support is the 5th.

  7. #7
    Boolit Man
    Join Date
    Feb 2018
    Location
    Iowa
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    88
    Is it possible to water drop into warmer water to get the BHN desired?

  8. #8
    Boolit Master
    therealhitman's Avatar
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    Nov 2014
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    USofA
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    486
    Quote Originally Posted by fecmech View Post
    No magic, water quenching WW's run in the 18-20 range. The hotter they are out of the mold the harder they will be when quenched.
    Shoot 'em quick and as is. Sizing will soften them, as will time.

  9. #9
    Boolit Master popper's Avatar
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    Jun 2011
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    7,649
    Yes, rate of cooling determines hardness
    Whatever!

  10. #10
    Boolit Master RED BEAR's Avatar
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    Oct 2011
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    outside richmond va
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    546
    Thats about what i get from water dropped coww. Tried ice water and got 27bnh. 50/50 mix gives me between 15 to 17 bnh.

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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