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Rifles, Reloading, Optics, Equipment
Reloading
Chrono Question
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<blockquote data-quote="MNbogboy" data-source="post: 521114" data-attributes="member: 18849"><p>Everyone here seems to agree on the distance (my Chrony stand is set up at 12 feet)....Another thing to consider is bright sun and sunshine angles....I have had readings 150 to 200 fps apart on sunny days in the past with the only explanation being chrono error.....</p><p></p><p>The chincy sunscreens that came with my first chrony and now the second one don't always work when the sun shines wrong...For years I quit using it on real sunny days until I fashioned a much larger shade with a piece of 1-1/2" x 16" x 2 long styrofoam...It is translucent enough to let light in but you can actually "shade" the chrony at almost any light angle by lowering it close to the bullet path (it slides on 4 uprights that are fastened to the stand).....Cloudy days you don't need it at all....Readings have been very consistent with both cloudy & sunny day readings since i started using the "big shade"...</p><p></p><p>I don't have a picture of the stand with the uprights installed, but the picture enclosed will give you an idea that the 4 uprights fasten to the two horizontal frame members and are about 16" tall....The styro sheet slides up and down on them.....</p></blockquote><p></p>
[QUOTE="MNbogboy, post: 521114, member: 18849"] Everyone here seems to agree on the distance (my Chrony stand is set up at 12 feet)....Another thing to consider is bright sun and sunshine angles....I have had readings 150 to 200 fps apart on sunny days in the past with the only explanation being chrono error..... The chincy sunscreens that came with my first chrony and now the second one don't always work when the sun shines wrong...For years I quit using it on real sunny days until I fashioned a much larger shade with a piece of 1-1/2" x 16" x 2 long styrofoam...It is translucent enough to let light in but you can actually "shade" the chrony at almost any light angle by lowering it close to the bullet path (it slides on 4 uprights that are fastened to the stand).....Cloudy days you don't need it at all....Readings have been very consistent with both cloudy & sunny day readings since i started using the "big shade"... I don't have a picture of the stand with the uprights installed, but the picture enclosed will give you an idea that the 4 uprights fasten to the two horizontal frame members and are about 16" tall....The styro sheet slides up and down on them..... [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
Chrono Question
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