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Thread: which alloy

  1. #1
    Boolit Grand Master
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    which alloy

    I am going black bear hunting in September. My gun of choice is a Thompson Center Encore chambered in 500 Linebaugh.
    My load is 36.0 gr's of w 296 with a 400 gr boolit. Now the sticky, I have a number of alloy's to choose from like 20/1,25/1,ww/50/50 ww/pb, and isotope lead. I am leaning towards a binary alloy but have not fully decided. Which alloy would you use? Would you go hard or use something that will expand,or do I need to even need worry about the alloy? By the way that combination out of my gun is traveling at 1800 fps.

    Oh I also have molds for 350,400,425,450 and 500 gr boolits some cup points and some with hollow points
    Hit em'hard
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  2. #2
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    Larry Gibson's Avatar
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    For 1800 fps I would try a 16-1 alloy.
    Larry Gibson

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

  3. #3
    Boolit Master 358429's Avatar
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    400 grains at 1800 foot per second... am I understanding that correctly?

    That sounds very powerful.

    How does that feel to shoot??

    Is that a rifle or a pistol?

    To shoot that from a pistol must feel like squeezing a firecracker.

    I bet it's fun.

    Sent from my SM-G930T using Tapatalk

  4. #4
    Boolit Grand Master
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    its from a rifle
    yeah it's a handful you don't want to spend a entire afternoon shooting off the bench with that one
    It's similar to a 3"12 ga slug
    So Larry I should toughen it up a bit ya think?
    Might just try that..
    Hit em'hard
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  5. #5
    Boolit Grand Master


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    That is getting into 50 Alaskan territory.
    Should take care of any critter still roaming one of these 48 States of America if a large FN design.
    We shoot 50 Alaskan and 400 - 525 grainers ww/pb works very well up to 1850 fps powder coated.
    "Come unto Me, all you who labor and are heavy burdened, and I will give you rest." Matthew 11:28
    Male Guanaco out in dry lakebed at 10,800 feet south of Arequipa.

  6. #6
    Boolit Master



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    Are you not able to do some testing yourself??

    For many years I took advice on such things and mostly was told right but as I CHANGED thjngs I needed different and needed to know MY BULLET @ MY VELOCITY.

    Wet news papers soaked well at least overnight. These will be tougher then a game animal but not necessarily hugely. Gel is a diff animal. Gallon water jugs show well too. But need proper carrage as allot if bullets are lost as they can and do vere off to sides. Also a very large tarp on the ground under the area your doing this helps ALLOT finding bullets that "sneak" out.

    There is good reason COWW are universely advised. As a good rifle alloy. (Say 1800/2000 fps) Cause they work!! So cutting that a little as assed above will likely be your huckleberry. But personally Id test to know.

    Good luck in both hunts!!

    CW
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  7. #7
    Boolit Grand Master

    Wayne Smith's Avatar
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    I agree with Larry, 16/1 or 50/50 ww/pb which will essentially be the same.
    Wayne the Shrink

    There is no 'right' that requires me to work for you or you to work for me!

  8. #8
    Boolit Grand Master


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    Quote Originally Posted by white eagle View Post
    its from a rifle
    yeah it's a handful you don't want to spend a entire afternoon shooting off the bench with that one
    It's similar to a 3"12 ga slug
    So Larry I should toughen it up a bit ya think?
    Might just try that..
    With a binary alloy of lead/tin I usually switch from 20-1 to 16-1 when the velocity runs 1350+ fps. I have pushed 16-1 alloyed bullets to 1800 fps with very good success ballistically, both external and terminal. That is with lubed cast bullets.

    As mentioned, you might want to work up to the velocity testing for accuracy. If the 16-1 doesn't cut it then a stronger ternary alloy might be needed, especially if the bullets are PB'd. If the ternary alloy is needed the mentioned COWW/PB at 50/50 is what I'd start with as also mentioned. I would add 2% tin to the COWW before adding the PB though.
    Last edited by Larry Gibson; 07-28-2021 at 09:11 AM.
    Larry Gibson

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  9. #9
    Boolit Grand Master
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    these boolits like all of mine are to be powder coated
    my main concern is do I need to try for any expansion or because of the size just no need
    I do have some boolits that are made now that are made of isotope alloy and powder coated
    I should try those and see where the accuracy falls compared to my previous load
    Hit em'hard
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  10. #10
    Boolit Master
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    Quote Originally Posted by missionary5155 View Post
    That is getting into 50 Alaskan territory.
    Should take care of any critter still roaming one of these 48 States of America if a large FN design.
    We shoot 50 Alaskan and 400 - 525 grainers ww/pb works very well up to 1850 fps powder coated.
    It would take care of anything that roamed North America in the last 50,000 years including as short-faced bear, the big brother of grizzlies.

  11. #11
    Boolit Grand Master popper's Avatar
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    I don't hunt bear but my understanding is you want accuracy and penetration. Add 2tablespoons of Zep root killer to 20# pot of Lary's alloy. Will penetrate and be accurate even with PB.
    Whatever!

  12. #12
    Boolit Grand Master
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    sure !
    Hit em'hard
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  13. #13
    Boolit Master reloader28's Avatar
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    Quote Originally Posted by popper View Post
    I don't hunt bear but my understanding is you want accuracy and penetration. Add 2tablespoons of Zep root killer to 20# pot of Lary's alloy. Will penetrate and be accurate even with PB.
    What is the root killer for?? Serious or a joke?
    I like 50/50 for hunting

  14. #14
    Boolit Master 358429's Avatar
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    I was wondering about that.

    Sent from my SM-G930T using Tapatalk

  15. #15
    Boolit Grand Master
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    not sure either must be some type of funny
    Hit em'hard
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  16. #16
    Boolit Grand Master popper's Avatar
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    Adds copper to toughen the alloy
    Whatever!

  17. #17
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    I'm setting up for bear also. It will be a 44 mag 320 GC WLFN at 1450 fps from a 22" barrel. My load work ups have been COWW powder coated. I'm going to try pure lead soft points for accuracy and probably go with that.

    Not recommending, just throwing it out as a possibility.

  18. #18
    Boolit Grand Master
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    Quote Originally Posted by Larry Gibson View Post
    For 1800 fps I would try a 16-1 alloy.
    Larry
    you were rite on about the harder alloy
    I went to straight wheel weights and my group was literally cut in half
    putting 8 shots into a small little cluster rite in line with the bull
    I do believe that I will be using ww alloy next month
    Hit em'hard
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  19. #19
    Boolit Grand Master
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    re-test provided some fired boolits in a dirt back stop
    ww alloy expanded very little (.750) and retained a weight of 350 gr.
    the 20-1 alloy expanded to (.900) and had a retained weight of 300 gr.
    on the accuracy edge it was close but with a slight advantage to 20-1 alloy
    these boolits were 400 gr. Keith style and were powder coated
    I do believe I will be going with 20-1 in my rifle in 10 days
    Hit em'hard
    hit em'often

  20. #20
    Boolit Grand Master
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    with a 44 mag with 300 gr. Lee's as back up (just in case the bear decides he is mad at me)
    and in case I need another back up rifle I will
    take my 35 Whelen M70 Super Grade with 250 gr Hornady's
    that will be the maiden voyage since Jess worked his magic on it
    Hit em'hard
    hit em'often

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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