Yes. Was looking at a new Remington 870 pump .410 shotgun today, in fact.
Yes try hushpower .410 12 & 20G
They started making .410s about as soon as the .410 shell was created- around 1900- and still continue.
No.
Yes
the Winchester 9410
i DID
Dozens of makers have made 410 shotguns over the last 100 or so years. Winchester, Remington, Ithaca, Purdey, H&H are a few.
100-300 or so
They are the same. Mossberg 500 series includes all shotguns. 500A is 12gauge. 500E is 410.
Hunting, self protection, target shooting.
No such weapon. 410 shotguns have been made by Win, Browning, Purdey, H&H to name a few.
The winchester model 42 was a .410 pump very like the old model 12 pump