Well, with the 28bore I killed it's first recovered deer. It was a nice longhorn 3 pt with a cowhorn on one side.
I stalked up on him after I seen him working though a small grove of immature hardwoods. He looked like he may come my way and present a shot so I crouched down on a little hump next to the trail. Sure enough he started coming my way down the trail and I leveled the gun, ready for him to come around a little curve in front of me. He came around the curve and stopped ears up starring at me, I'm not sure if he made me or not. The distance, 20 yards or so. I fired, a double lung shot, he went about 30 yards or so.
Folks, hunting with a smoothbore like this, well it's not like shooting through a scope and nothing like shooting paper. I do believe a good majority of modern hunters, can't handle it. What a rush. Being able to control your own self is a skill in it's self.
Part of my motivation for adding the rear sight was the first deer I killed with the 28 several years ago. It was a high racked 9 point that was found a year later.
To set up the shot I built a small nest and laid prone. The buck showed up with a buddy and presented a gravy train shot at about 30 yards.
I made a fundamental mistake. I had never shot that gun prone, shooting prone without a rear sight changed my hold so I shot better than a foot to the left. So I most likely hit guts. There was no blood and I searched for him for two days. The next year, bones including the skull were found several hundred yards from where I took the shot. He was a nice one.
Had I been in upright position, had a rifle, or had a rear sight I would have recovered that deer.
So practice every imaginable position with a smoothbore.