You've got to be careful on those "reenactments" to not let the barrel get too hot.
Back in 1961, I was a crew member on the USS Constellation, sister ship to the USS Constitution, "Old Ironsides". She was berthed in Baltimore, and we were supposedly a "landing party", which participated in the first Battle of Bullrun - Manassas. I was armed with an original 1861 Springfield .58 cal.
We were carefully checked for projectiles, and removed our ramrods. Didn't want anything to go flying toward those Johnny Reb guys, nor did we want them to have anything fly towards us.
So, we finally got to make our "charge" towards those Rebels! Our ammo was as usual, a cardboard tube filled with black powder, but a wad of paper instead of a Minnie ball. Drill was simple, pour the powder down the barrel, put a cap on the nipple, and fire. I got kind of carried away, and shot all 50 cartridges in about 5 minutes - resulting in a lot of scorching around the nipple, and a barrel that left a nasty 2nd degree burn on my hand. Still have the scar after all those years.
I soon learned to fire at about 35-40 seconds between shots, allowing the barrel to not get quite as hot. Lasted longer in subsequent battles around northern Virginia.
BTW - wasn't long before we retreated in disarray. I then went over to the artillery, but found it hazardous as well. The Army had supplied us with "artillery simulators", which whistled, then exploded with a loud bang! and a cloud of smoke. The problem was, these conveniently fit down the muzzles of our cannons, and it wasn't long before both sides were launching those darn things. A bit too realistic!
Was tons of fun for a 15-year old!