I had an A-5 like that for hunting "grouse". I just recently picked up an original American A-5. It is the first auto shotgun produced in America. The Browning/Remington Mdl 11.
It is 90% with a solid rib 28" IC barrel. I will try out on Prairie Chickens in Sept.
My dad had an old Model 11 with a 26" solid rib Improved Cylinder that he quail hunted with. Well, actually, he'd have hunted anything he hunted with it because it was our only shotgun until my older brother and I were old enough to get shotguns. As soon as I thought I could stand the recoil, probably at about 9 or 10 years old, I started shooting the Model 11, and I continued to shoot it some until I was about 30 years old, by which time I had several other shotguns of my own. The gun was simply amazing at how well it held a pattern considering the open choke. Even after I had a choked side by side, over and under, Remington 1100, Remington 870, and my friends had various shotguns including a 1973 Belgium Auto 5, I'd take that old Model 11 out from time to time and just shoot it for whatever task was at hand that day -- clay targets, doves, blackbirds, or whatever, and it seemed to bring down just as many as any other gun in the bunch any given day. I patterned it once when I was working up some loads for my Remington 3200 and the Model 11 threw one of the most even patterns I've ever seen from a shotgun -- looked like you'd just taken the available shot and placed them equidistant from one another within the circle. I showed a couple of my shooting friends and they were struck the same as I.
My brothers and I were talking about it a couple years ago and their recollections were the same -- they also took it out with their friends from time to time and the gun always seemed to get the job done. I don't know what happened to it over the past 15 years or so, but I believe my youngest brother or his son has it. Unless they've cleaned it, I don't think it's ever been cleaned beyond an exterior wipe down. Anytime I see anyone on the internet say anything about an Auto-5 design needing to be cleaned, needing the friction rings set just so, or any such thing in order to cycle reliably, I know that they, based upon my experience with the old Model 11, have NO idea what they are talking about.
Based upon what I've seen, those guns are the definition of bullet proof.