pellet=no bb's= 6mm plastic not copper.
First, check to see that you have a BB gun, and not a pellet gun. Both pellets and BBs are made in .177 cal. A pellet gun will not shoot BBs (in most cases) If your gun IS a BB gun, you will need a gunsmith to check it for damage, stuck items in the barrel, etc.
No recommended, Not designed for plastic BB's.
It's designed as a pellet rifle. Forcing it to fire BBs will ruin the rifling in the barrel. Rendering it much less accurate, It's a good way to ruin a pellet rifle.
no
No. A pellet gun would use compressed air.
No it's not designed to do it.
no
No. Even if it would fit in the chamber, there is no firing pin on a pellet gun.
Nope. Pellet guns are fairly safe to use.
Use C02 to propell the pellet
There are several BB/Pellet gun models on the market that have smooth bore. If your model is designed for both BBs and Pellets then you you can shoot both.