The fact is a Remington 1187 is a better shotgun than a Benelli SBE.
Whoopee-crap - I don't see the Marines going with the Super Black Eagle, do you?
With the semi-auto, You are relying on a series of small parts that get banged up pretty badly in a shotgun. They break and fail I don't care who makes the weapon.
Eventually, on a long enough time line, anything will break. Lets look at the components involved -
Rotating bolt head: Hmmm, we have those on AR's all the way up to .50 cal - seem to do just fine.
Trigger group: Again, if common parts can handle .50, 12 guage shouldn't be a problem.
Gas pistons: We use them in the M240 and M249 machine guns, they should work dandy in a shotgun.
Recoil buffer and bolt group - seem to be adapted from the already successful Benelli's. Other than the "extractor" problem, how many other failures are common?
Guess what else? Gas operated versus pump operated means true one handed use - how many pump action shotguns offer that? Not to easy to pump when you've been shot in the arm.
Furthermore, with the incorporation of stainless steel parts where it counts, it sounds like this is tougher than your standard Benelli. If it has a stainless receiver, it definately is.
I am not trying to engage in a grudge match but again in thirty years of sporting clays, duck hunting, quail hunting,pheasant hunting and dove hunting. I have never seen a semi that is more reliable than an a pump.
And again, you are looking at dove / clay / whatever guns not primarily designed for
combat. Polished Walnut is not designed to be submerged for hours on a combat swim. Bluing is not as corrosion resistant as parkerization. Standard (type 2) anodization is not the same as Military grade type 3 hard anodization.
You can have 100 years experience driving Model T's and that doesn't make you qualified to comment on how a Ferrari handles without touching it.
So again, this all leads back to the "I've never seen it work, so therefore it can't possibly work" syndrome. Again, if yours was the prevalent thought, we'd still be shooting lever actions and single action revolvers.
Kevin