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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
FPS or velocity from gun to gun
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<blockquote data-quote="MNbogboy" data-source="post: 787438" data-attributes="member: 18849"><p>VarmintH8R you hit the nail on the head, with todays ballistic programs and even the "free" ones a person that enters all the data in correctly will be able to make a reasonable estimation of their velocity using that method and when it comes to buying a $100 chrony over going to the range, the shooting day wins everytime..(more on the Chrony below)..</p><p> </p><p>Before us backwoods "hillbillys" had or could afford chronographs we used bullet manufactuers drop tables to determine velocities....Guess what? when we aquired our first chronies we verified that our methods weren't too far off...</p><p> </p><p>Now with todays balistic programs we not only can back up our chrony results with field drop testing...But we also can determine our velocities in absence of our chrony based solely on actual drops at known distances....That is providing we have and enter all correct information...</p><p> </p><p>I am not knocking the $100 chrony because I have had two of them over the years...They can be as accurate as more expensive ones or give useless information depending on how they are set up...I have one set up permanently at my 100 yard range....It is mounted within a box which controls the amount of ambient light that enters the sensors...Bright sunlight is now directed away from the sensors and bullet path....When conditions are dark(overcast near dusk) I use two battery powered LED lights....But I still haven't mastered the sundown angle (I shoot west)....Direct sunlight gives the Chrony brand fits (probably others also)...</p><p> </p><p>BeezleBub if you reload or intend to a chronograph will be a real asset when you start working up loads...The actual range data will be the real answer to your current question regardless if you acquire a chrono or not.</p><p> </p><p>Good luck,</p><p>Randy</p></blockquote><p></p>
[QUOTE="MNbogboy, post: 787438, member: 18849"] VarmintH8R you hit the nail on the head, with todays ballistic programs and even the "free" ones a person that enters all the data in correctly will be able to make a reasonable estimation of their velocity using that method and when it comes to buying a $100 chrony over going to the range, the shooting day wins everytime..(more on the Chrony below).. Before us backwoods "hillbillys" had or could afford chronographs we used bullet manufactuers drop tables to determine velocities....Guess what? when we aquired our first chronies we verified that our methods weren't too far off... Now with todays balistic programs we not only can back up our chrony results with field drop testing...But we also can determine our velocities in absence of our chrony based solely on actual drops at known distances....That is providing we have and enter all correct information... I am not knocking the $100 chrony because I have had two of them over the years...They can be as accurate as more expensive ones or give useless information depending on how they are set up...I have one set up permanently at my 100 yard range....It is mounted within a box which controls the amount of ambient light that enters the sensors...Bright sunlight is now directed away from the sensors and bullet path....When conditions are dark(overcast near dusk) I use two battery powered LED lights....But I still haven't mastered the sundown angle (I shoot west)....Direct sunlight gives the Chrony brand fits (probably others also)... BeezleBub if you reload or intend to a chronograph will be a real asset when you start working up loads...The actual range data will be the real answer to your current question regardless if you acquire a chrono or not. Good luck, Randy [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
FPS or velocity from gun to gun
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