My first gun was a Red Ryder BB gun at age 8. The sights weren't set well by the factory, so I adjusted the front sight with a hammer... put a nice graceful sweep into it. After that it became the Hammer of Thor. I could shoot nectaring honey bees in half at five paces. I dropped many brace of House Sparrow with a bit of hold over when the right shot presented... usually singing males pointing their beak upward to expose the throat patch. BTW it wasn't a single shot... it was a high cap lever gun, a very early equivalent to today's black guns.