FrostedFlake
Posts: 3084
Joined: 3/4/2009 From: Centralia, Washington Status: offline
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Normal visual acuity is commonly referred to as 20/20 vision, the metric equivalent of which is 6/6 vision. At 20 feet or 6 metres, a human eye with nominal performance is able to separate lines that are one arc minute apart. http://en.wikipedia.org/wiki/Visual_acuity#Normal_vision One minute of arc = 1.047" at 100 yards http://en.wikipedia.org/wiki/Minute_of_arc 5 x 1.047" = 5.235" This means the typical human cannot see the orange top of a clay pigeon at 500 yards. A penny is 3/4". And is not orange. At 500 yards, 3/4" is 1/7th of a minute of arc. Not only can no man that ever lived have possibly seen a penny at 500 yards, no rifle ever built could be relied upon to hit it. Even if the rifle is mounted in a machine rest and the penny is placed at the point of impact of the previous round. Further, there is the problem of the front sight. It is considerably wider than a minute. If your airgun is not equipped with a 500 yard rear sight, you will need to raise the front sight, obscuring the target, in order to make the pellet fly far enough to reach the target. Further, there is windage. It does not take much wind to push a pellet 3/4" at 500 yards. A half inch per second is more than plenty. A half inch a second is 1/3 mph. Further, there is the movement of the shooters body, which moves the rifle. A good man can hold still. But he cannot become a statue. But, of course, I'm no expert, so far be it for me to say... hang on... I've probably gone through about 100,000 rounds in my time. So I probably am an expert. Remington Nylon 66. Colt Woodsman. Winchester 94. Remington model 8. Marlin 336. Luger. Colt 1911a1. Remington 700 ADL. Remington 700 BDL. Smith & Wesson 586. Ruger Blackhawk. Winchester 190. I am certain I owned a few more that I don't recall just now. I am 50 after all. They say the mind starts to go in the Autumn years... What was I talking about? Edit : Traded an 'n' for an 'f'.
< Message edited by FrostedFlake -- 5/17/2013 12:37:52 AM >
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Frosted Flake simul justus et peccator Einen Liebhaber, und halten Sie die Schraube "... evil (and hilarious) !!" Hlen5
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