I mounted an Optisan CP3-12x32 scope on my FWB300s a few months ago, but never had a chance to wring it out. Today I shot a USARB target at 25m, scope set to 12 power, using 7.87 JSB Express pellets. Pellets were unsorted/unweighed and shot right from the can. Almost zero wind; if it hit 1 mph I'd be surprised. I scored using an unscientific method of placing a .22 pellet over the .177 hole. Overall score was a 219, definitely nothing great, but I think I can tighten it up with pellet inspection and weighing. I haven't tried any other pellets but the 7.87 JSBs.