Forums
New posts
Search forums
What's new
Articles
Latest reviews
Author list
Classifieds
Log in
Register
What's new
Search
Search
Search titles and first posts only
Search titles only
By:
New posts
Search forums
Menu
Log in
Register
Install the app
Install
Forums
Hunting
The Basics, Starting Out
Chrony Chronographs...
JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding.
You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an
alternative browser
.
Reply to thread
Message
<blockquote data-quote="obfmcb" data-source="post: 71473" data-attributes="member: 4198"><p>I agree that the absolute velocity that you measure will be more accurate if the skyscreens are spaced farther apart. Relative velocities between shots are different story. If I am reading your comments correctly, you seem to be assuming that there is going to be a 0.2" variation in the skyscreen spacing shot to shot, but that clearly isn't the case. Once you are set up, the screen spacing is fixed, the position of the chrongraph relative to the rifle is fixed, and as long as the lighting conditions aren't changing, the only real source of variablity is in the timing circuitry, and that's a pretty simple gizmo. One of the reasons the Oehler is the better instrument is that the timing is measured twice and compared for each shot, and even here the Oehler is going to give you an odd reading every now and then.</p></blockquote><p></p>
[QUOTE="obfmcb, post: 71473, member: 4198"] I agree that the absolute velocity that you measure will be more accurate if the skyscreens are spaced farther apart. Relative velocities between shots are different story. If I am reading your comments correctly, you seem to be assuming that there is going to be a 0.2" variation in the skyscreen spacing shot to shot, but that clearly isn't the case. Once you are set up, the screen spacing is fixed, the position of the chrongraph relative to the rifle is fixed, and as long as the lighting conditions aren't changing, the only real source of variablity is in the timing circuitry, and that's a pretty simple gizmo. One of the reasons the Oehler is the better instrument is that the timing is measured twice and compared for each shot, and even here the Oehler is going to give you an odd reading every now and then. [/QUOTE]
Insert quotes…
Verification
Post reply
Forums
Hunting
The Basics, Starting Out
Chrony Chronographs...
Top