Is this a Whitworth bullet?

[pine3874]

https://civilwartalk.com/threads/confederate-whitworth-bullet.110803/ Found this yesterday at a home site and was wondering if it is a Whitworth bullet. Looking at the bottom of the bullet, it appears to have a double jacket which I've never seen before, but I know nothing about bullets so am just guessing.
Measurement were made with a tape measure(don't have calipers) so just approx.

WT: 584 gn
1.125" long
0.5" OD
0.25 ID

 

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[d2]

I think Whitworth bullets have flat sides but I could be wrong. Nice find regardless...d2

 

[fyrffytr1]

It looks more like an Enfield but I don't think that is right either. While I was doing some research I came across this site which I found very interesting especially in regards to the Whitworth.

Firearms History, Technology & Development: Rifling: Polygonal Bore and the Whitworth Rifle

 

[devldog]

The Whitworth bullet has flat sides as d2 stated. The Whitworth rifle had a hexagonal shaped barrel which made these bullets pretty extinguishable. If you find a bullet that appears to be longer than most with flat sides, you can pretty much bet it is a Whitworth bullet. They are cool looking.

 

[Joe G from Md]

I think it is a fired Enfieid, Whitworths were solid base. Just my guess.

 

[fyrffytr1]

I think it is a fired Enfieid, Whitworths were solid base. Just my guess.

Did Enfields have the insert in the base like this one?

 

[Tnmountains]

Enfields are common with the double jackets and are a confederate mostly bullet. I have dug many and only have two whitworths. Dug two and gave one away before I knew what I had.
I would rather dig that ole confederate bullets than a yankee one

 

[Davers]

I must agree , you have a Enfield Type , 54 cal maybe ?

Some or most Whintworth's are Round & have a Small Dish Cavity .

The hexagonal shape came from the Barrel , as stated above also Whintworth bullets were .45 caliber.

IMO , One could do a Small book on just Enfield Types.