I, too, started hunting with a H&R .410 single shot, but at age 10, old compared to bandit
. That 50 years ago period is my total experience with them, but, I have to wonder if modern ammo, with shot encasing wads, etc., wouldn't result in better patterns with less choke than the old days. In any event, a .410 is a less than 30 yard performer, especially with the 2 1/2 inch cartridges that the Henry lever actions use. I view the lever action .410's as more of a plinker (a spendy one, though) than a hunting gun.
I'm sure the single shot is chambered for 3 inch .410; that's the one they need to make in 28 ga. I'd need one of those
.