I have a highly upgraded (to the tune of $700+)L-96 that chronos over 550 with .2. I, on a very still cool day can hit a man sized target out to 290'-300' with a .40 30%ish of the time, so not reliably. If there is the slightest wind, ie. ANY wind, it's over. So cost verses effectiveness is a very diminishing return. Plus if you really want to fill the Sniper role in airsoft, get a good set of binoculars and a good radio, find a good spot to observe from and call enemy movement to you units. Its much more effective to walk your guys up on the bad guys who don't know they're coming.