Embedded in Firewood

I cut down a red maple that was leaning heavily.It's an area that I'm going to build a pole barn on in the back of the property. I was a bit surprised when I saw how much of the tree was rotted out.

I was bucking the tree up for firewood and noticed this metal in the wood.

I pried the hunk of metal out of the log and realized I cut right through a bullet.

Oops, time to sharpen the chain