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
Rifles, Reloading, Optics, Equipment
Reloading
Accurate Burn Rate chart that compares Hodgden-Alliant-Viht powders
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="Veteran" data-source="post: 2435709" data-attributes="member: 118038"><p>Here is an excellent source published in 1997 that essentially analyzes the Audette Ladder Test and says it works for the same reasons I explained above. </p><p></p><p>Man its all physics!</p><p></p><p>[URL unfurl="true"]https://2poqx8tjzgi65olp24je4x4n-wpengine.netdna-ssl.com/wp-content/uploads/2012/07/incremental-load-development-method.pdf[/URL]</p><p></p><p>By the way, I believe the whole reason you will find a low node, and a high node or several nodes that work where the graph goes up and then flattens again is related to barrel harmonics and sin waves of pressure and sound in the steel barrel. </p><p></p><p>Different combinations of harmonics are produced with different charge weights, bullet seating, etc. So, you may find a higher velocity node where it all flattens or goes down because the harmonics happened to come back into play again just right.</p><p></p><p>So as in electrical harmonics, you may get a 2nd, 3rd, or 4th order harmonic sin wave at some different frequency as you go up the velocity curve and find another node. I believe its all related to unique system harmonics in your specific rifle with its specific barrel </p><p>taper and length, and weight, the powder burn rate, the volume of the cartridge, the bullet seating used, the weight of the bullet, </p><p>etc. Then its all vibration of that barrel as the sound and pressure waves move back and forth before the bullet exits.</p><p></p><p>Explanation of harmonics and orders of harmonics -- ie, sin waves</p><p></p><p>[URL unfurl="true"]https://www.electronics-tutorials.ws/accircuits/harmonics.html[/URL]</p></blockquote><p></p>
[QUOTE="Veteran, post: 2435709, member: 118038"] Here is an excellent source published in 1997 that essentially analyzes the Audette Ladder Test and says it works for the same reasons I explained above. Man its all physics! [URL unfurl="true"]https://2poqx8tjzgi65olp24je4x4n-wpengine.netdna-ssl.com/wp-content/uploads/2012/07/incremental-load-development-method.pdf[/URL] By the way, I believe the whole reason you will find a low node, and a high node or several nodes that work where the graph goes up and then flattens again is related to barrel harmonics and sin waves of pressure and sound in the steel barrel. Different combinations of harmonics are produced with different charge weights, bullet seating, etc. So, you may find a higher velocity node where it all flattens or goes down because the harmonics happened to come back into play again just right. So as in electrical harmonics, you may get a 2nd, 3rd, or 4th order harmonic sin wave at some different frequency as you go up the velocity curve and find another node. I believe its all related to unique system harmonics in your specific rifle with its specific barrel taper and length, and weight, the powder burn rate, the volume of the cartridge, the bullet seating used, the weight of the bullet, etc. Then its all vibration of that barrel as the sound and pressure waves move back and forth before the bullet exits. Explanation of harmonics and orders of harmonics -- ie, sin waves [URL unfurl="true"]https://www.electronics-tutorials.ws/accircuits/harmonics.html[/URL] [/QUOTE]
Insert quotes…
Verification
Post reply
Forums
Rifles, Reloading, Optics, Equipment
Reloading
Accurate Burn Rate chart that compares Hodgden-Alliant-Viht powders
Top