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Rotometals.com

Lead Free Bullet Casting Alloy Bismuth based

(19 reviews) Write a Review
SKU:
Leadfreebulletalloy
MPN:
547735
Availability:
in stock
Weight:
1.00 LBS
Shipping:
Calculated at Checkout

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Buy 50 - 99 and get 7% off
Buy 100 - 249 and get 9% off
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  • Lead Free Bullet Casting Alloy Bismuth based
  • Lead Free Bullet Casting Alloy Bismuth based
  • Lead Free Bullet Casting Alloy Bismuth based
  • Lead Free Bullet Casting Alloy Bismuth based
  • Lead Free Bullet Casting Alloy Bismuth based
  • Lead Free Bullet Casting Alloy Bismuth based
  • Lead Free Bullet Casting Alloy Bismuth based
  • Lead Free Bullet Casting Alloy Bismuth based
  • Lead Free Bullet Casting Alloy Bismuth based
  • Lead Free Bullet Casting Alloy Bismuth based
$38.50

Description

 
Sold by the Ingot ~ i.e. 1 Pound
 
This ratio of~  87.25% Bismuth, 0.75% Antimony  and 12% Tin is the best ratio we have come up with as a substitute for lead. This alloy melts at about 395 F and is best cast or poured at about 500F. Testing the hardness with a Lee Hardness Testing Kit, we came up with an average of 19.3 on the Brinnell Hardness Scale, although there was a range during the testing.

The bismuth gives you the weight (as close to lead as possible) and the tin helps holds it together and makes it less brittle.
This is an alloy we have been asked to make a few times so we decided to make a larger batch and have it easily available to everyone. As we are still testing this alloy, we are offering it at a lower cost and asking customers for feedback and their thoughts on how it works. Yes, we know it costs way more then a lead version, but hopefully with more volume, we can offer better prices in the future. One item of feedback we got from our customer follows:
 
I have some results from shooting this alloy over the weekend, very favorable in the limited testing I did.  Accuracy and high velocity is not a problem if the bullet fit to the rifle's throat is right.  No bore fouling, no problems at all.  I even cleanly killed a small whitetail spike buck with my .223 Saturday using the alloy you sent. 
I documented the entire work here on this bullet-casting forum,  Load information, approximate velocity, and target ranges are in the text with the appropriate photos.  Link to the forum thread https://www.artfulbullet.com/index.php?threads/lead-free-bullet-casting-alloy.5585/  
 
 

@ 2400 fps in my 30'06, but has lost 29% of nominal cast bullet weight


 
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Additional Information

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19 Reviews

  • 5

    Lead free bismuth alloy

    Posted by James Puckett on Mar 26th 2025

    Very easy to work with. Casting lead free slugs for testing. The alloy does swell a bit making the slugs a little difficult to release from the mold. Happy with the results. Now to load them and see how they do.

  • 4

    Good but not great for me

    Posted by Matt on Mar 19th 2025

    I’ve been using this alloy for hunting in CA with my muzzleloaders. It’s a good option. But it’s not great, though I’m not sure what really is great in lead free. For round ball, it casts easier than lead with a few tweaks. For bullets, things get difficult. They stick hard to the mold. I have to tap them fairly hard, directly on the back of the bullet to get them to come out. Because they’re so hard, they can’t obturate at black powder pressures. So I’ve found it best to shoot an undersized bullet with a cloth patch, just like round ball. As for expansion, fughettaboutit. It’s a caliber-sized hole in & out. All in all, it works. There isn’t a better option yet. But it would be no different than shooting very hard cast lead on big game. Just at about 87% the weight.

  • 4

    Jig

    Posted by RONALD VANLOENEN on Jan 24th 2025

    I use this for my jigs as I live in NH which any jig under an ounce had to be lead free. Only complaint is i wish i was cheaper and that's why it gets the 4 stars.

  • 4

    Bismuth bullet alloy

    Posted by Hendrie Javier on Jan 20th 2025

    Great stuff for casting roundball for my muzzleloader, wish it actually was as heavy/dense as lead. great groups though.

  • 5

    Jigs

    Posted by T Cole on Dec 12th 2023

    I’ve had a lot of success casting bass jigs from this alloy. They hold a powder paint well, and they fish just as well as lead jigs.

  • 5

    LEAD FREE BULLET CASTING ALLOY BISMUTH BASED

    Posted by Mike Bierbaum on Mar 19th 2023

    I used the alloy to cast 1/32 and 1/16 ounce fishing jigs. The alloy is very brittle compared to lead. More time is required to clean up castings compared to lead but the final product is of high quality.

  • 5

    Lead free

    Posted by CHAD JACKSON on Aug 12th 2021

    This material is awesome. I can know powder paint my jigs and they are rock solid

  • 5

    Lead Free Bullet Casting Alloy Bismuth based

    Posted by Lee on Apr 13th 2021

    It seems to work great for casting. I have used it so far for casting round balls for muzzeloader and it works great.

  • 5

    Bismuth Tin Alloy For Fishing Lures & Weights

    Posted by Dale Wyman on Feb 28th 2021

    If you need a Non-Lead alloy for fishing baits, weights, jig heads etc., this is the alloy I would suggest. I use the alloy for blade baits, drop-shot weights, jig heads and more. I use a Lee melting pot to pour into my Do-It Molds and the alloy at just over 300° F pours perfectly each and every time. Super fast delivery!

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