airsoft bbs .2 grams flying at 500 fps hit with .15 pounds of force
a paintball 3 grams flying at 300 fps hits with 1.5 pounds of force.
ten times the impact
and an almost completely unrelated topic for those who think paintball makes them tough, a lacrosse ball going 80 mph (which is a fairly normal shot speed) hits with 128 pounds of force
Lacrosse is an acceptable sport, yet paintball and airsoft are considered violent or whatever negative adjectives people think of. Genius.
Anyways, regardless of what the math tells you about BBs and paintballs, would you really want to take the chance with your eyes?