That said the Beretta A400s are pretty darn nice guns but much more complex running a gas system at 7 lbs+ and mine got very sooty after a short season. The Benelli inertia-drivens can be stripped down to parts pretty quickly and much more thoroughly cleaned with less effort IMO.
George not singling you out specifically, but I hear the above statement often and I quoted yours so I didn't have to type it again.
For the below, let's assume a guy cleans his shotgun at the beginning of dove season and wants to shoot it until the end of Dec/Jan/Feb when upland/waterfowl close depending on your locale. Short of filling the thing up with mud/muck crawling or dropping it hunting waterfowl, even exceptionally avid hunters will be able to run either shotgun an entire season with little likelihood that they'll need to disassemble for any cleaning due to poor feed/function. If you go out and get rained/snowed on, you've got to pull them both apart and clean them.
Yes Benelli's bolt comes apart easy. Big deal, none of the parts in the bolt being "shooting dirty" are what cause feed/function failures.
Yes the Berettas get dirty under the forearm. The piston, it's chamber, and the stem that the piston runs on get dirty, but again, from just shooting them normally, none of that sooty fouling makes any difference, it's not going to detract appreciably from feed/function.
Here's a breakdown of the field-stripped Benelli parts in roughly the order they come out:
1. bbl nut, 2. bbl, 3. forearm, 4. frame, 5. bolt handle, 6. firing pin retainer, 7. locking head pin, 8. firing pin, 9. bolt head, 10. inertia spring, 11. bolt body, 12. trigger group retainer pin, 13. trigger group. You need to remember how to re-assemble 13 parts. One can argue that on the split-top/bottom guns like SBE/Vinci that the trigger group can remain in the frame but on the S-90 and Monte, the've got to come out to get the bolt's tail seated properly.
Beretta field stripped parts list:
1. bbl nut, 2. bbl, 3. forearm, 4. gas piston, 5. operating rod, 6. bolt handle, 7/8. bolt (2 pieces once out), 9. frame, 10. trigger group, 11. trigger group retainer pin.
So, give or take, you've got the same number of parts that need to come out/in for a field-stripping/cleaning. Here's the thing, if either a Benelli or a Beretta is having function issues, it's unlikely that any of the above parts/pieces are the main culprit. The main culprit is almost ALWAYS the recoil return spring in the butt-stock. Cleaning that is essentially the same for both shotguns. Pull the pad, pull the butt-stock, put a little heat on the threaded recoil return spring/butt-stock retainer and unscrew. Take care near the end of the threads or you'll shoot the spring and bolt-tail seat across the room and under some piece of furniture or appliance that hasn't been moved since Nixon was president. Then you'll have to deal with 3' dust bunnies that United Airlines couldn't kill.
Here's where the shotguns differ appreciably IMO. Rarely is a shotgun so dirty that there is a failure to eject. Typically failure to Feed/Function happens on the forward stroke. The Recoil Return Spring (RRS) in the stocks of both are truly the heart of both actions. Slow either of them down due to cleanliness or neglect and you can clean the dozen or so action parts listed above for each all you want, the SOB still won't cycle properly. The Benelli RRS is significantly "softer" or of less tension than the Beretta. Take a new example of each, pull the bolt back and let it slam forward and it's pretty obvious which spring is stiffer. The Benelli spring HAS TO BE softer in order to allow it to cycle "everything" because it's relying on only recoil. The Beretta can be a lot stiffer because it's using the gas in conjunction with recoil to cycle. That softer RRS in the Benelli NEEDS attention more often to ensure proper Feed/Function. The stiffer spring in the Beretta also contributes to longer overall life IMO. The softer spring in the Benelli allows it to beat itself to death with prolonged use of heavy loads whereas the Beretta bolt hits the open end of it's stroke much softer due to compressing a much stiffer RRS spring.
Yes I am a "Beretta Guy" but I believe I came by it honest via an awful lot of field and target shooting Beretta, Benelli, Rem 1100's/11-87's, Browning gold/Win SX's, original A-5's/Franchi 48's, and even a couple of S&W 1000's. 5yrs in a busy gunshop (3k guns/yr give or take) during college also gave me a glimpse of what needed to be fixed and what didn't.
