Percussion cap or just trash?

[Southern Brass]

Kinda excited and curious about this find . I'm still new to all this civil war relic hunting but I was wondering if this is actually a percussion cap that has been fired?? looking at other pics online it sort of looks like one but what I have looks to have been blown to to pieces at some point in time. There is no markings or writing on it and the item I have is apout the size of a penny spread out , copper or brass. Thanks again for any info on this item ,

 

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[duggap]

It's a fired modern bullet.

 

[mirage83]

It's a fired modern bullet.

+1, looks like a jacket which peeled away from the lead core.

 

[Tony in SC]

You can still see the grooves on the jacket. Tony

 

[BosnMate]

Yes, the lead core is missing, all three are correct.

 

[Dodad]

Looks like a hollow point bullet that has impacted something and done what they are supposed to do.