BB guns are a poor choice for killing snakes or rodents. The BB do not deform when they strike and the rodent will suffer. Pellets are a much better choice to kill rodents. Yes the 750 will kill the snake but it may take more than one shot.
Yes it is possible
Depends on the FPS. If the gun is over 400 fps it can go threw a can. My friend has a 400 fps ak 47 and it can kill the can.
350FPS would be sufficient
No way! you could get arrested your self because he could press charges and by the way I have a 750 fps airsoft gun there are no laws on an airsoft gun fps
750 fps./BB; 665 fps./pellet The name Power-line may be a little misleading. Modern Pellet rifles are capable of firing a pellet at 1000+ fps. But this is a combination BB and Pellet gun and as far as BB rifles goes 750 fps is a good speed for a BB. This is about as fast as they can possibly go. I own 2 of these and find them very entertaining to shoot for fun.
they get a gun and shoot it
No, a pellet gun can't kill a bear it will only make it angry. There for it will eaither attack you or just ignore it.
An air soft gun can possibly kill a rattle snake but it depends on the gun and where you hit it
Depends on what you are trying to kill. A small rodent, then Yes. A larger animal then most likely NO.
Yes: small game. Rats, squirrels and small birds.
Yes they are safe to be used in airsoft and can withstand almost 750 fps (i tried an expirament with my goggles and my friend had a 725 fps gun and shot my goggles to see how tough they were and they held pretty well.
the most fps in a gun is 500 or more and my best gun is a mp44 because its 517 fps and it hurts and it feels like a bb gun