A number of shots fired at a given range at one target & with one sight setting, with either rifle or handgun, to determine the accuracy of either the gun or the ammunition. With a handgun the most common range is probably 25 yards. A two inch group is generally considered good.
Stevie Wonder plays a Hohner Chromatic Harmonica. He mostly plays the Super 64x chromatic which i recentally bought and it is amazing. The quality of sound of smoothness is incredible. I would recommend it to anyone playing the harmonica.
Most recorded harmonica you hear is done in crossed (or second) position. Basically what this means is that the harmonica used is not in the same key as the song. Learning this is THE big step toward learning how to play blues harmonica. Many harmonica players spend years without knowing which harmonica to choose when they know what key the song is played. In second position the draw chord becomes the song key instead of the blow chord. See the following chart to select the correct harmonica for playing crossed harp (second position) in any song key. Note that the harmonica you want to use is 5 half tones above the key the song is being played in.