They actually make 6mm metal bbs. I play airsoft on occasion, and most of our skirmishes are in a huge wooded area and fields. I have seen one of our players kill a snake with a spring pistol. I figured those would be better.
Not really the idea is no holes in the barn siding
"You know why there's a Second Amendment? In case the government fails to follow the first one."
-- Rush Limbaugh, in a moment of unaccustomed profundity
"MOLON LABE" - Come and get them, can't be any plainer than that!