My Dad never scrimped on ammo, not for hunting, anyway. His A5, which, I own now, never jammed while he owned it, and hasn't in the time I've owned it. A few years after I got it, I put one of the Browning Stalker stock sets on it, and replaced the springs and friction piece. I can't say for sure it was needed, I just did it, as the gun is a 1952 model, and I figured it was time. I've shot this gun A LOT, usually in really foul weather. No problems. I have two Hastings barrels for it, and have never had a problem with cycling when using either of those. I have heard of people struggling to get aftermarket barrels to work, but, haven't had the problem myself.
He also had the first version of the Benelli SBE, also stuck in a safe at my house. The directions we have for it are in Italian, and it is marked Heckler and Koch, so, it is an early one. Somewhere in the directions, it makes the point about not using less than 1 1/4oz loads.
If you do that, it doesn't jam. But, we needed the directions translated before we figured that out. My Dad thought he would be able to run any 12 gauge load in it. Which, you can do, if you aren't concerned about the second round clearing and the gun returning to battery. We did struggle with the gun a long time, trying to make it work with the wrong ammunition. But, it seems OK, now. I don't hunt much that needs 1 1/4 oz of anything, however. It is a light gun, and it lets you know when a 1/4oz load, or larger, round has gone off
He shot a lot of greasy promotional loads, one at a time, at the club, in his SBE.
I haven't shot it much.
We used to own a few 1100s, and after we figured out we needed a few O rings on hand, we didn't really have trouble with them, either.
My Dad was big on cleaning guns before you sat down to eat, after a trip out, and I think that had a lot to do with our reliability.
Autos aren't my first preference for anything, but, most of the trouble I've seen wasn't really the gun's fault.
Like a lot of car trouble. Happens to the same people, all the time, it seems to me.

Best,
Ted