Read this article thought some of you might like it .
http://www.minisniping.org/
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MiniSniping is the field sport of using ultra-precision .177 caliber airguns outdoors in a scaled-down version of metallic silhouette of falling plate shooting with centerfires. If that makes it sound like a sissy sport, let me point out a few aspects of it that might give a better insight.
The targets we shot are generally 9mm empty cartridge cases steadied by a base of modeling clay, or, as it's called here, plasticene. You will recall the stuff as the gummy crud your mother was always picking out of your hair when you got bored with molding turkeys and pilgrims in fourth grade, and discovered that a pellet of it worked very nicely in cool weather in both your slingshot and peashooter. In any case, 9mm cases are unbelievably small, precise targets at 35 yards, but to find just how relatively small they were I had to actually get a mathematician to do the calculations.
Lorian Coughlan of South Africa, who would have surely come up with the Theory of Relativity had she not been edge out by sheer chronology, advises me and thee that the visual relationship between a target 3/4 inch in height would be the same as the 29 inch average between a sniper's scalp and belt buckle at 1336.6 yards! So, if you got 35 yards in your backyard you can shoot at the equivalent of an enemy sniper at better than a relative 1,000 yards plus. I don't know about you, but that does pure wonders for my backyard.