Im playing with it with just powder. It's loud without a BB in I don't have the nerves to shoot it in the garage yet. The YouTube videos sound like a pistol caliber. Pm with the furs and I'll give you a few bucks and I'll come meet you over the weekend. Will post pics and dry shoot video with just powder. I'm just loading the fuse hole with a small amount of power. Just a hassle right now. : ) I love this little thing!!