Need help Iding these bullets

[Etrac Brian]

Need help Id'ing these bullets

My buddies and I have found several of these at a civil war battle site. The only thing close is an Enfield but it looks more conical than the Enfield. Has anyone found these?

 

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[TheCannonballGuy]

The two bullets seem to be different lengths and different diameters. Is that right?

The longer one, on the left in the photo, appears to be an unfired civil war yankee .54-caliber Cosmopolitan Carbine bullet. That type's average measurements are:
.538" diameter
.88" length
308 grains (weight)

The shorter one might be a cut-off ("carved") Cosmopolitan... or it might be a different type, called a "Picket" bullet or "Country Rifle" bullet.

For confirmation, please measure them with a caliper and tell us their size in hundredths-of-an-inch.

 

[Etrac Brian]

I don't have a caliper but it's a half inch wide and just over three quarters and inch long. Does that help. Both are the exactly the same size

 

[Etrac Brian]

After looking at the photos I have no doubt that's what they are. It was union cavalry camp that was attacked by confederate cavalry