Beats me. I have no plans on shooting paintballers. Then again, I also have no plans on being shot at. Seeing as how my datebook doesn't show that I'm going to be shot with paintballs on such and such date, I don't really know how I will react. Will I be able to determine its a paintball? Hell if I know. Will I react in some way? I hope so. But if on such and such day, my scheduled paintball shooting happens and I see a barrel of an unknown gun coming out of an unknown car being held by an unknown person and it is my honest assessment that my life is in danger, then I expect that if I cannot escape the situation that I do draw and fire. If that gun turns out to be a paintball gun, I sincerely hope I miss. If that gun turns out to be a .17 or larger, I hope my aim is true and quick. But if I can't figure out what it is prior to needing to react, upon which side do I err? Caution for them or caution for me? I'm not trying to shoot anyone ever. But more importantly, I'm not trying to get shot either.