The scope is definitely too big for the gun, I’m just playing around as my primary Atomic XR stays as is. Anyway after the initial mounting of the scope, rings, etc. Zeroed at 25 yards. Then shot the four, five shot groups pictured. Crosmans, JSBs, Crosmans, JSBs. As you can see, she’s fairly amazing with the Crosmans. I’m not saying “all” my Crosman groups are like this, but they shoot consistently accurate out of my two Atomics. Took three shots, missed once, then hit both of my 102 yard targets using a whopping 30 MOAof holdover with the Crosmans. I’ve come to appreciate my MIL dots scopes over MOA for shooting using holdovers out to 102 yards. Both of my Atomics have proven as accurate as each other. The primary has a smoother trigger because it’s been shot thousands of times more than my spare. Either way, I love these little guns.