The new A5 is inertia driven very much like the Benelli. I would go with the Benelli, however if you ever needed customer service Beretta/Benelli isn't really great at that. Browning would likely give you better customer service. In Beretta/Benelli's favor is that customer service is rarely needed with one of their shotguns. The SBE is more problematic than the M2 and for your uses I don't see the need for a 3.5" chamber. M2 wasn't mentioned but it would be my choice.
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