This is the Paulsons' orginal 30 pdr Parrott. You can see the projectile emerging from the muzzle blast. The gun is being fired with a 3lb powder charge, the target was one mile away. The second photo was at night. The gun was sighted before nightfall.
http://www.graybeardoutdoors.com/phpbb2/album_pic.php?pic_id=1149">
http://www.graybeardoutdoors.com/phpbb2/album_pic.php?pic_id=1150">