I'm quite happy with mesh, I know people worry about splinters but I see it as a marginal worry more risk of breaking your ankle down a rabbit hole.
Couple of times with the full face mask I use I have had splinters come through, went to the safe zone only once to check as I could feel something around my eye. I plan on changing to goggles once I can afford a good pair don't like mesh at all.
I've had a piece of shattered BB hit me in the eye through my Hero Sharks, which is not that surprising when you consider how big the perforations are in the sheet that the mesh is made from - much bigger than most perforated mesh, a bit bigger than the stuff used in full face plastic masks. Despite the fact that HS's must allow larger fragments through, which therefore must carry more energy, when it hit my eye the fragment was moving so slowly that it felt just like getting sand in my eye from wind on a beach. A pain in the arse, yes, but amazingly enough I had the foresight (see that? hohoho!) to refrain from rubbing my eye, which may have scratched it creating a 3-day annoyance, and back in the safe zone simply blinked as fast as I could for a couple of seconds to get my eye watering, which carried it to the outside corner where it was easily finger poked out - no damage at all. A cupped clean hand full of water splashed in there would have done the trick too. Ed has had something similar, iirc.
Physics wise it makes perfect sense - to shatter a BB takes considerable energy, much of which is converted from momentum into heat and sound. What remains is then divided between all the fragments, so it's no wonder that there's no significant momentum left in any one of them.
As bornleverpuller says, there's more risk of hurting yourself against the environment, especially if you can't see properly because your polycarbonate lenses are fogged. I live in hope that I'll find some lenses which don't fog, which is why I've acquired some Bullet Ants, because James is right, there must be some infinitesimal risk (although it may be that there is a greater statistical likelihood of an accident occurring as a result of goggles getting knocked off than as a result of a BB fragment penetrating mesh - I don't know, but we do know that nobody has ever had an eye injury of any description sufficiently serious to warrant a news story due to goggle failure, it's always like James' mate - no eyepro), but more importantly, any mesh is a partial opaque barrier, lenses have got to be better to see through, so long as they do not fog
at all. Don't be surprised to find me selling my new gogs in about 2 weeks though :lol:
Simple. ESS glasses can stop a point blank shotgun
Yeah mine could have stopped me seeing somebody aiming a shotgun at me point blank!
the only thing you'd gain is the ability to look down the sites easier. I have found that the rentals I have been using very difficult to do that when using face protection.
It's not necessary to squash your cheek against the stock to aim over iron sights, you can shoulder the rifle slightly closer in towards your centre against your pectoral muscle and rather than leaning your head just over "/" lean it further and bend your neck to make your head more upright "_|" - or cut the right lower cheek off your 1/2 face mesh mask.