Titan ReloadingWidenersInline FabricationLee Precision
RotoMetals2RepackboxADvertise hereMidSouth Shooters Supply

Results 1 to 13 of 13

Thread: Lead hardness.

  1. #1
    Boolit Master
    Join Date
    Sep 2009
    Location
    Arizona
    Posts
    1,550

    Lead hardness.

    The 8 does not belong in the heading that was a typeO. I cast up some Lee 225 55 gr. 6 cavity, and I used straight COWW and about 3 oz tin in a 10 # Lee bottom pour pot and water droped. My temp was running about 750 to 800, nice shiny boolits. I have a Lee hardness tester but I have problems getting a reading. Just wondered what you guys think the hardness is. I can't scratch the boolits with my fingernail. Thanks
    Last edited by 45-70 Chevroner; 05-08-2020 at 02:33 PM.

  2. #2
    Boolit Buddy


    Join Date
    Nov 2010
    Location
    Florida
    Posts
    403
    You could try the pencil test, but those should be hard enough for any speed.

  3. #3
    Boolit Master
    Join Date
    Jan 2010
    Location
    Tom, VA
    Posts
    4,971
    I'm surprised your bullets aren't frosted at that temperature. Frosted bullets are good bullets. Your hardness is probably about 20 - 22 BHN.

  4. #4
    Moderator Emeritus


    JonB_in_Glencoe's Avatar
    Join Date
    Mar 2010
    Location
    Land of 10,000 Lakes
    Posts
    13,102
    The Alloy should be 94-3-3...give or take a point.
    I have a bit of experience with that alloy (air cooled) and the Lee tester.
    It should be a BHN of about 14, in a couple weeks.
    measuring same day will likely read something lower, but I've never experienced a reading as low as 8.

    If you are looking for an answer to why the reading of 8?
    I would suggest you offer up a complete and detailed summary of your testing procedure. About a year after I got my Lee tester, I found a flaw in my testing procedure, that'd give me seemingly random low readings...my problem had to do with the Press I was using, and the 'slop' in the Ram...which gave me slightly oblong dimples.

    edit: I just seen you mention water drop, my suggestions pertain to air cooled.
    Last edited by JonB_in_Glencoe; 05-08-2020 at 01:02 PM. Reason: added 'edit' comment
    ~~~~~~~~~~~~~~
    “If someone has a gun and is trying to kill you, it would be reasonable to shoot back with your own gun.”
    ― The Dalai Lama, Seattle Times, May 2001

  5. #5
    Boolit Grand Master fredj338's Avatar
    Join Date
    Feb 2009
    Location
    kalif.
    Posts
    6,127
    Quote Originally Posted by Tatume View Post
    I'm surprised your bullets aren't frosted at that temperature. Frosted bullets are good bullets. Your hardness is probably about 20 - 22 BHN.
    I would bet closer to 14-15bhn, depends on the clip ww.
    EVERY GOOD SHOOTER NEEDS TO BE A HANDLOADER.
    NRA Cert. Inst. Met. Reloading & Basic Pistol

  6. #6
    Boolit Master
    Join Date
    Sep 2009
    Location
    Arizona
    Posts
    1,550
    The 8 was an accident in typing, sorry I didn't catch that.

  7. #7
    Boolit Master
    Join Date
    Apr 2017
    Location
    Minnesota
    Posts
    3,476
    In my COWW alloy, water dropped is usually in the 22-24 bhn range. One trick to the lee tester is to color the flat spot with a sharpie before you test it. This makes seeing the edges of the dimple easier.

  8. #8
    Boolit Master
    Join Date
    Sep 2009
    Location
    Arizona
    Posts
    1,550
    Quote Originally Posted by Tatume View Post
    I'm surprised your bullets aren't frosted at that temperature. Frosted bullets are good bullets. Your hardness is probably about 20 - 22 BHN.
    I think the reason they are not frosted is because of the size of the mold in relation to the size of the boolit. These small boolits don't heat up the mold as much as larger boolits do. They still got hot enough to sizzle when they hit the water.

  9. #9
    Boolit Master
    Join Date
    Sep 2009
    Location
    Arizona
    Posts
    1,550
    Quote Originally Posted by Tatume View Post
    I'm surprised your bullets aren't frosted at that temperature. Frosted bullets are good bullets. Your hardness is probably about 20 - 22 BHN.
    I think the reason they are not frosted is because of the size of the mold in relation to the size of the boolit. These small boolits don't heat up the mold as much as larger boolits do. They still got hot enough to sizzle when they hit the water.

  10. #10
    Boolit Grand Master


    Larry Gibson's Avatar
    Join Date
    Jul 2005
    Location
    Lake Havasu City, Arizona
    Posts
    18,147
    As mentioned, depending on the quality of the COWWs, the BHN should be 13 - 15 in 10+ days.
    Larry Gibson

    “Deficient observation is merely a form of ignorance and responsible for the many morbid notions and foolish ideas prevailing.”
    ― Nikola Tesla

  11. #11
    AKA: GRMPS Conditor22's Avatar
    Join Date
    Dec 2018
    Posts
    1,925
    TATV did a test with quenched COWW and PC



    not sure what the added tin does.

  12. #12
    Boolit Master
    Join Date
    Sep 2009
    Location
    Arizona
    Posts
    1,550
    Quote Originally Posted by megasupermagnum View Post
    In my COWW alloy, water dropped is usually in the 22-24 bhn range. One trick to the lee tester is to color the flat spot with a sharpie before you test it. This makes seeing the edges of the dimple easier.
    I'll try that. Thanks.

  13. #13
    Boolit Grand Master
    bangerjim's Avatar
    Join Date
    Apr 2013
    Location
    out of here, wandering somewhere in the SW.
    Posts
    8,938
    13-15 air cooled in a few days. Possible 22-24 in a few days if water dropped. 2% Sn gives you nicer smoother boolits and makes your molds fill out easier and nicer.

    Those are the ranges I get repeatedly with my Cabine-style hardness tester.

    I add ~2% max Sn to everything I cast. I have PLENTY of it. At $20+ per pound I have seen around, some guys treat it like sliver!

    banger

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
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