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Thread: Annealing Jackets

  1. #181
    Boolit Mold
    Join Date
    Nov 2018
    Posts
    15
    Quote Originally Posted by BT Sniper View Post
    Muleskinner,

    Helps us to interpret the readings on your gauge.

    and just for curious sake maybe one additional sample.... like a piece of pure lead???? So we can compare.

    Thanks

    BT
    In the top picture of my first post the unannealed brass is reading 54 HRB which is the hardness on the "B" scale.
    The bottom picture was measured after annealing and reads 3 HRB which means it is much softer after annealing.

    My tester only has "B" and "C" scales. The "B" scale is for softer material and uses a 1/16 ball penetrator, to test harder material like knife steel it uses a diamond. To measure lead I'd need to buy an 1/8 ball penetrator. I tried it with the 1/16 and the preload buried the penetrator before the major load was even applied.



    Last edited by muleskinner222; 11-30-2018 at 02:44 PM.

  2. #182
    Boolit Buddy Liberty1776's Avatar
    Join Date
    Dec 2018
    Location
    The Free State of Arizona
    Posts
    384
    Somebody somewhere said brass anneals if it reaches 750 F.

    But how do you know that? Enter Tempilaq.

    Tempilaq is a paint that melts at a specific temperature.

    A 2-oz jar of Templaq costs $26.82 on Amazon as of 2/6/19. https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1

    Paint it on a sample, cook it until the Tempilaq melts. You're reached annealing temp.

  3. #183
    Boolit Buddy


    Join Date
    Apr 2009
    Location
    Cleveland, OH
    Posts
    427
    Muleskinner,

    You are on the right track. Here is some work I did about 10 years ago when evaluating the same topic. To get a true BHN reading you need to measure the diameter of your dimple with a micrometer. Additionally, I used a larger ball which was used for rubber hardness testing. The larger the ball the better so you can measure it more easily.

    http://leadandbrass.com/hardtest/hardness.html
    Zbench

  4. #184
    Boolit Master wilecoyote's Avatar
    Join Date
    Jun 2021
    Location
    venice, italy
    Posts
    632
    Quote Originally Posted by Pee Wee View Post
    Duke in florida and I anneal in a lee 20lb dipper pot that he got, put in a couple of hand fulls. I made a cover for it out of thick piece of steel plate and cook for 15 min. and they glow red and are done.
    thank you for the input : tried, and I confirm its validity.
    even a thin sheet metal plate helps to keep the heat and speed up the process
    Food is overrated. A nice rifle is way more important.
    Rob

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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