It is my understanding you can shoot an air gun in the backyard in the County of Sacramento (I don't know about the City of Sacramento) providing the pellet does not travel past your premises onto a neighboring property.
If the pellet gun is loud, there might be some issues relating to noise ordinance... usually after or before certain hours.
The only laws on the books in Sacramento County specify issues regarding to shooting in or within 150 yards of a public park... which is not allowed.
No
It's not legal.
yes
Yes, whether it is legal is another question.
yes you can
Arguably no, since you can only torture a possum with a BB gun, not kill it.
sorry buddy but its illegal
Why not call your local police and find out? They won't arrest you for asking.
No. Because, in order for you to shoot them you would have to get their permission to shoot them. If you accidentally shoot somebody inside your backyard without their permission, it is their fault for being in the yard with someone that has a paintball gun and is shooting it in the first place.
As long as your neighbours are ok with it
if you live in a close house neighborhood then no, but if your house backs up to woods then yes
i think so