Just kidding. Those are cool to have, especially since it sounds like you found them yourself.
I used to work with a guy who’s brother was a forensic historian at one of the battlefields. He told me one day, a family came in and mentioned that their great great grandfather fought in the battle. He asked which side, they told him, he asked if they knew his rank. He was a Sergeant Major. He then said, well, there were only three Sergeant Majors who fought in the battle that day. Each carried their own sidearms. Two were one caliber, the third was a different caliber. He then went into a cabinet and removed a box holding a single spent bullet. He said that he dug this out of a tree and since it was a specific caliber, there’s a huge chance your great great grandfather fired this bullet.
History is awesome.
It’s illegal to use a metal detectors on a battle field so you have to go at night. I will tell you a civil war battlefield at night is a creepy place.
I went to a yard sale in my small neighborhood and bought what was left of an antique pistol that was found on the battlefield. The handle and side pieces were intact, everything except the barrel. I paid $10. For it and it is one of my favorite artifacts. I had a antique gun expert looked at it and he said it was made in the early 1700’s in France and because of being found on the battlefield it probably was dropped where it was found after someone was shot and killed.