Bullet id please

[cmthunder]

2 civil war battlefield finds Western Md looking for ID.

One on left is L-1.01, D-.51, 432 grains
On right L-.958, D-.52, 432 grains

Thanks for help!

 

[TheCannonballGuy]

I think both of them are fired .52 Sharps "New Model" bullets. Notice that their weight is absolutely identical -- which would be extremely odd if they were different kinds of bullets. I suspect the .01" difference in diameter is due to corrosion.