Daammnnnn....lets go with before.
like any other truglow red dot would. i had it sighted in at 35 yds. knocked out bowling pins all day from a standing position. though i think that it was more the barrel than my shooting ability.
it suited my needs for a plinking .22
after i dropped it (moving things around in the safe and out she came!) my dumbass did it, i have not shot it since .22 ammo is worth its weight in gold. if i ever find some i will let you know after a re-zero if it works well at readjusting or not. it still works... glass still good, emitter works, but the adjustment screws are iffy.