help with possable bullet

[grimroofer]

hi i hope im in the right place i found this today in the water im not sure if it is a bullet but i cant figure out what else it could be thanks for any help oh and the one standing up is the back end

 

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[grimroofer]

odd find for maui were they military i find some wierd stuff here the oldest was 1776 Spanish coin thanks for the help

 

[old_goldchaser]

No expert, but it looks like a patchbullet, maybe 50 or 58 cal. I have seen alot of them, and it sure looks blackpowder to me. Those ridges at the rear...seen them alot in the balls made for the larger cal blackpower patch bullets such as those used mid civil war. And could easily be found almost anywhere where the military has been. Or civilian for that matter. Those were typical of the heavy cal bullets for the rifled barrels.
I used to have an old mold for just that type of bullet. It disapeared years ago in one of my moves. It was a mold made back in the 1800's. My grandfather had it since he was a young man, and he gave it to me and I had it till it disappeared.
Thats a nice find and one that is likely rare for your area even though its been settled for several hundred years by men with firearms. No major battles there with the older weapons such as on the mainland, at least none that I am familar with. I dont know the history over there that well.

 

[vayank54]

Yes, that's a bullet..

looks like a post 1900 .45 caliber rifle bullet.

Agree
It's definitely not a civil war bullet.