The stinger p9 is good with .12 gram airsoft BBs or you can use .25 gram bbs but then it will decrease the range.
No, they are too small and will jam the gun. Never try to use metal bbs in airsoft guns or vice versa.
All airsoft guns usually use 6mm BBs, usually made of plastic, and come in a variety of different weights (.12 grams, .20 grams, .25 grams, .28 grams). Normally .12 gram BBs are the cheapest, and are good for most airsoft guns, although airsoft guns that shoot at higher velocities should use .20 or .25 gram BBs, as they will shoot straighter.
I'd say the Crosman Stinger P9. I'm an experienced airsoft player and have been playing for about 2 years now. I've had my trust P9 for a long time, and it always functions flawlessly. Plus, the P9 has a high capacity magazine which is nice because it makes it easier to load and it holds more bbs. The more bbs= less time loading. The P311 doesn't look like it has this feature.
any bbs will work in any gun i prefer .20 gram crossman whites
never use .12 bbs. they are very inaccurate. Buy some .20 tsd tactical bbs, never use crosman
Some are made of standard plastics, while others are bio-degradable.
no.
Airsoft bbs are made up of plastic and are 6mm in diameter and are .24 cal, BBs however are metal and are .177 cal (4.5mm)
in the scope its a slide on the top put the scope on the gun aligned with the hole in the gun and scope then pour bbs into the scope
Type recommended by the maker of the airsoft.
No.
Yes, if you shoot the dogs or let them eat the BBs.