It can be done, but, it is not recommended
50-1000 USD or more depending on specifics.
Depending on what it is choked, yes. Have a gunsmith examine it.
You must follow the instructions in the owners manual or call S&W
Mossberg 1000 barrels will fit the Smith & Wesson 1000 Super 12 only !!
A shotgun.
about 1000
Yes. You will have to shoot different brands and weights to see which one(s) your shotgun prefers.
Less than 100 to over 1000 depending on specifics.
100-1000
about 1000
$650-$1000 used
100-1000 USD