You really don't want one - they aren't as accurate as everyone says.
They are more accurate than you can imagine and you should get several.
Just yesterday I was murdering some starlings that kept trying to roost in a red cedar windbreak. At about 175 yards, one young bird landed on the very top spire of a cedar. Just as I was about to shoot the bird took off. I was all set up on the tree top so I moved the crosshairs to the twig and fired. The 17gr Hornady sawed the spire off slightly lower than my aiming point. To me that is nothing short of magic
