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Rifles, Reloading, Optics, Equipment
Reloading
Best Cheap Chrono??
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<blockquote data-quote="T3-OleMan" data-source="post: 726858" data-attributes="member: 14600"><p><span style="font-size: 10px">Got a Shooting Chrony, Master Alpha a few years back for about $110. What I wanted was a consistent measurement device. Did not care if it was over or under the real accurate speed as long as I could get same speed under same conditions each time. </span></p><p><span style="font-size: 10px">To get a feel for the real speed I shoot KNOWN factory speeds at temp about 70 F and not at high altitude. All you need is a bench mark. </span></p><p><span style="font-size: 10px">Then I knew mine was over or under by 5FPS or 40FPS from the true speed under those exact conditions. Just remember that every element in the environment that changes can change the speed one or more FPS. </span></p><p><span style="font-size: 10px">Even these simple things can add up when you get several at the same time.</span></p><p><span style="font-size: 10px">-not same distance to chrony each time.</span></p><p><span style="font-size: 10px">-sun is not out.</span></p><p><span style="font-size: 10px">-sun is on gun now.</span></p><p><span style="font-size: 10px">-sun is on chrony now.</span></p><p><span style="font-size: 10px">-left the sun block strips home for chrony.</span></p><p><span style="font-size: 10px">-ammo was in hot car last time.</span></p><p><span style="font-size: 10px">-wind change direction.</span></p><p><span style="font-size: 10px">-temp cooler by 25F.</span></p><p><span style="font-size: 10px">There are at least 25 things that can make FPS vary and they can add up real fast.</span></p><p><span style="font-size: 10px">Good luck and be sure to place it at least 60 inches out from MUZ.</span></p></blockquote><p></p>
[QUOTE="T3-OleMan, post: 726858, member: 14600"] [SIZE=2]Got a Shooting Chrony, Master Alpha a few years back for about $110. What I wanted was a consistent measurement device. Did not care if it was over or under the real accurate speed as long as I could get same speed under same conditions each time. [/SIZE] [SIZE=2]To get a feel for the real speed I shoot KNOWN factory speeds at temp about 70 F and not at high altitude. All you need is a bench mark. [/SIZE] [SIZE=2]Then I knew mine was over or under by 5FPS or 40FPS from the true speed under those exact conditions. Just remember that every element in the environment that changes can change the speed one or more FPS. [/SIZE] [SIZE=2]Even these simple things can add up when you get several at the same time.[/SIZE] [SIZE=2]-not same distance to chrony each time.[/SIZE] [SIZE=2]-sun is not out.[/SIZE] [SIZE=2]-sun is on gun now.[/SIZE] [SIZE=2]-sun is on chrony now.[/SIZE] [SIZE=2]-left the sun block strips home for chrony.[/SIZE] [SIZE=2]-ammo was in hot car last time.[/SIZE] [SIZE=2]-wind change direction.[/SIZE] [SIZE=2]-temp cooler by 25F.[/SIZE] [SIZE=2]There are at least 25 things that can make FPS vary and they can add up real fast.[/SIZE] [SIZE=2]Good luck and be sure to place it at least 60 inches out from MUZ.[/SIZE] [/QUOTE]
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