Metal rounds are useless in an airsoft gun. If you go that route, then buy something else like .22, or a pellet gun. Even upgrading an Airsoft platform to handle metal is quite a waste.
I've seen silica BB's damage first hand. Some vaginal discharge, disobeyed a game rule, and ran them; inevitably shooting a window out on one of the trucks. I really hope they found that guy.
Silicas do sail with more stability than standard rounds, but due to the basic dynamics of them, they've nearly become a useless product.
ďREALITY IS LIKE A STONE. TO MANY ITíS HARD AND COLD, THEY CANíT HUG IT OR EAT IT, IT ONLY FRUSTERATES THEM AND DOESNíT DO THEM MUCH GOOD. TO OTHERS ITíS STRONG AND DEPENDABLE, YOU CAN BUILD WITH IT, BUILD UPON IT, OR WORK WITH IT, ALSO USE IT TO SMASH PEOPLE IN THE FACE.Ē