You're the second person to bring up a .177 pellet... Why a .177 vs something like a Beeman Kodiak in .25 (750 fps muzzle, and faster than the .177 at 40 yards.) Obviously the .177 shoots flatter, but are there other reasons?
I just happen to have one. It also shoots some kind of dart but, I haven't found one yet. I just like it because they're pretty quite.