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
load development
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="vancewalker007" data-source="post: 2606129" data-attributes="member: 66917"><p>Remember book COAL means nothing unless you're using the exact same bullet in the exact same chamber they used, which you are not. Your rifle's chamber leade is likely not the same as the test barrel. Also, every bullet type's ogive is in a different place relative to the tip of the bullet. So, what to do - this one way at the macro level</p><p></p><p>1.) Figure out where your max CBTO is using which ever method you deem worthy using every bullet you use before loading anything with that bullet (where the bullet ogive touches your rifle lands)</p><p>2.) Figure out where some good velocity/pressure nodes are with the bullet you chose. I usually use a safe CBTO like 0.040in off the lands to avoid bullets jamming on me while doing this step, see step 1 for the starting point of the lands.</p><p>3.) Do seating depth tests using the powder load you discovered in step 2 and the max CBTO found in step 1</p><p></p><p>Using this method I seem to spend way less components than any other basic approach. One of the big things you'll notice during step 2 are the velocity/pressure jump points that you need to stay away from to get good ES/STD. Plus you will be recording lots of good info on your rifle while doing this.</p></blockquote><p></p>
[QUOTE="vancewalker007, post: 2606129, member: 66917"] Remember book COAL means nothing unless you're using the exact same bullet in the exact same chamber they used, which you are not. Your rifle's chamber leade is likely not the same as the test barrel. Also, every bullet type's ogive is in a different place relative to the tip of the bullet. So, what to do - this one way at the macro level 1.) Figure out where your max CBTO is using which ever method you deem worthy using every bullet you use before loading anything with that bullet (where the bullet ogive touches your rifle lands) 2.) Figure out where some good velocity/pressure nodes are with the bullet you chose. I usually use a safe CBTO like 0.040in off the lands to avoid bullets jamming on me while doing this step, see step 1 for the starting point of the lands. 3.) Do seating depth tests using the powder load you discovered in step 2 and the max CBTO found in step 1 Using this method I seem to spend way less components than any other basic approach. One of the big things you'll notice during step 2 are the velocity/pressure jump points that you need to stay away from to get good ES/STD. Plus you will be recording lots of good info on your rifle while doing this. [/QUOTE]
Insert quotes…
Verification
Post reply
Forums
Rifles, Reloading, Optics, Equipment
Reloading
load development
Top