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
Another Hornady brass thread!
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="tim_w" data-source="post: 1838729" data-attributes="member: 11132"><p>Most people think brass condition does not change over time , its static. But that is only true in the fully annealed state. When brass has stress/energy worked into it that force /pressure between crystals and joints can create changes.</p><p></p><p>Example:</p><p>Someone that has one of seating load gauges from K&M or 21 Century etc. Size a few cases 10 (all the same lot firings) Immediately after seat a few bullets. Record the force readings. Now wait a month or two and using the same bullets seat the rest. See what the peak force load is on those compared to the others......</p><p>,....................</p><p></p><p></p><p>They see the same cracking thing in copper pipe and when temp cycled ( no where near annealing temps. Cold hot water levels. The pipes were developing cracks in the work harden stress areas. Very Low temp annealing eliminated it. </p><p></p><p>With poorly annealed from factory case necks could have contributed to this in combo with the cold. It is also posdible that it started at stress risers micro cracks at the shoulder neck junction hence my question and pic request.</p></blockquote><p></p>
[QUOTE="tim_w, post: 1838729, member: 11132"] Most people think brass condition does not change over time , its static. But that is only true in the fully annealed state. When brass has stress/energy worked into it that force /pressure between crystals and joints can create changes. Example: Someone that has one of seating load gauges from K&M or 21 Century etc. Size a few cases 10 (all the same lot firings) Immediately after seat a few bullets. Record the force readings. Now wait a month or two and using the same bullets seat the rest. See what the peak force load is on those compared to the others...... ,.................... They see the same cracking thing in copper pipe and when temp cycled ( no where near annealing temps. Cold hot water levels. The pipes were developing cracks in the work harden stress areas. Very Low temp annealing eliminated it. With poorly annealed from factory case necks could have contributed to this in combo with the cold. It is also posdible that it started at stress risers micro cracks at the shoulder neck junction hence my question and pic request. [/QUOTE]
Insert quotes…
Verification
Post reply
Forums
Rifles, Reloading, Optics, Equipment
Reloading
Another Hornady brass thread!
Top