Need help with a very heavy modern bullet

mr_larry

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Jun 22, 2010
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Northern California
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Metal Detecting
I found this bullet metal detecting a saltwater beach (Pacific - Northern California) a few months ago. When I found it I didn't think much about it until I pulled it out of my pouch and noticed how heavy it is. If you look at the photo below, it is the middle bullet that I am curious about.

3 side view.JPG 3 bottom.JPG


The bullet on the left is a copper jacketed .45 ACP round. It weighs 14.88 grams or 230 grains. The large three-ring bullet on the right weighs 29.19 grams or 450.5 grains.

The middle bullet weighs 24.57 grams or 379.2 grains. It is pretty close in size to the .45 ACP round but it appears to have a slightly larger diameter. It weighs more than 1.65X as much as the .45 round.

Here are two more photos:
close up.JPG bottom.JPG


The bullet itself is extremely hard: I cannot put a mark on it with a steel file.
The underlying metal appears to have a light gold tint to it. There is a dark grey dull coating on the bullet that could be oxidation but it is also unaffected by a steel file.

This bullet appears to have been fired with the nose only slightly mis-shaped. There is a curious piece of metal protruding from the side that is shaped like a thorn. The thorn piece is solid and there is not enough missing material from the bullet to account for all of the material in the "thorn."

Tungsten carbide seems to be a logical candidate for the mass and hardness of the material that comprises the bullet. However my research does not show any tungsten bullets in this shape or configuration.

Another possibility could be depleted uranium, but again, those bullets were much different and they were designed for piercing tanks (long skinny bullets)

Other random thoughts: although it appears to be of the size and shape of a handgun round, coming in just shy of 380 grains means you would have to have a monstrous load in there to get any muzzle velocity out such a pig. Taken to its logical conclusion, I think even Dirty Harry would balk at firing one of these things from a handgun.

Has anyone ever seen a bullet like this or know what it is? This thing has been sitting on my coffee table for a few months now and it has been driving me crazy!
 

I don't believe it is a bullet.Not sure what though I think the inside metal is brass.
 

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I don't believe it is a bullet.Not sure what though I think the inside metal is brass.

It is definitely not brass. I am 100% sure of this. Brass is easy to scratch with a file. This metal is completely unaffected by a steel file. This metal is heavy like gold.
 

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The white patina-ed one looks like a 45-70,and the mystery one looks like a shotgun slug shot from an unrifled barrel?
slugseq7.jpg
 

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I think what you have might be a KTW ("cop killer") teflon coated tungsten bullet. I don't find one of exactly that shape but the other characteristics follow.
 

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I think what you have might be a KTW ("cop killer") teflon coated tungsten bullet. I don't find one of exactly that shape but the other characteristics follow.
I was wondering what that "Talon",type bullets would look like.The core does look like Tungsten
 

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I don't see any rifling marks. I know bullets pretty well, but I don't know if the teflon coated bullets exhibit rifling marks after being fired or not. It does look like a bullet. 380 grains is too much for a .45 acp. It's more like the weight of a rifle bullet like the 45-70 govt or some of the sharps calibers. The trouble is, who and why... those calibers are old and not used much, especially in the tactical world where teflon coated tungsten bullets would be used. The only pistol this would be suited to is the 500 smith and wesson. I think that makes more sense than any of the rifles it might fit. That may narrow it down for you.
 

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Was going off of the metals color on core thats why I thought brass, but if shotgun slug what caliber would be size of a 45.
 

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Back of the boat,
I think .410 gauge and .45 caliber are pretty close to the same diameter. HH, Terry.
 

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A .410 and a .45 have .040" (forty thousandths of an inch) difference. It's a pretty notable difference... about like the difference between a .270 and a 30-06 bullet diameter. An accurate measurement would help ID it.
 

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Thanks for all of your insights! I do not have a caliper to measure the diameter of the bullet. However, using a measuring tape, the bullet appears to have a diameter of exactly 12 mm, which translates to 0.472441 inches.
 

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..not that its at all relevant to this conversation,but right now all of the California Coast and soon to be the whole state...all lead ammunition is illegal so Tungsten will be more common
 

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A rifled shotgun shoots saboted bullets. 20 gauge is my guess. Diameter varies from different manufacturers. .40, .45, .58, Etc.
 

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That,s a stumper for sure.As cheese said I don,t see any rifling marks either.I,ve never seen a KTW bullet but that extrusion out the back leads me to think maybe it,s not a bullet.Weird diameter too for the weight.No clue right now.
 

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