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
Long Range Hunting & Shooting
Load development technique
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="lancetkenyon" data-source="post: 1332375" data-attributes="member: 68875"><p>I perform a ladder test also. ALWAYS with the bullets seated into the lands. That will always give you the most pressure, so you will know what your max charge weight would safely be no matter what else you change.</p><p></p><p>1 round of each charge weight, starting usually midway up the book scale, in .5 grain increments, to a couple grains over book max.</p><p></p><p>Shoot at 300 minimum over a chrono, 400 or more preferred. Starting lowest, and moving up, looking for signs of pressure, and stopping at the first sign.</p><p></p><p>Once I find my low and high nodes, I look at chrono data to find the best set of speeds.</p><p></p><p>Then load up charge weight testing at .3 grain increments and 3 shot groups. Look for best group, least vertical spread, and best RD.</p><p></p><p>Then do the same testing procedures with seating depth testing in .0400" increments. </p><p></p><p>Then, load up 15 or so and go test at distance. Usually 600, 700, 800 yard 5 shot groups.</p><p></p><p>I might fine tune a touch after that with .1 grain, or .0100" seating depth changes, but only if I am not satisfied after the initial seating depth tests or they don't quite meet my standards. </p><p></p><p>Then go and shoot....a bunch, to validate drops and accuracy way out.</p><p></p><p>It has worked phenomenally well for me in a LOT of different rifles.</p></blockquote><p></p>
[QUOTE="lancetkenyon, post: 1332375, member: 68875"] I perform a ladder test also. ALWAYS with the bullets seated into the lands. That will always give you the most pressure, so you will know what your max charge weight would safely be no matter what else you change. 1 round of each charge weight, starting usually midway up the book scale, in .5 grain increments, to a couple grains over book max. Shoot at 300 minimum over a chrono, 400 or more preferred. Starting lowest, and moving up, looking for signs of pressure, and stopping at the first sign. Once I find my low and high nodes, I look at chrono data to find the best set of speeds. Then load up charge weight testing at .3 grain increments and 3 shot groups. Look for best group, least vertical spread, and best RD. Then do the same testing procedures with seating depth testing in .0400" increments. Then, load up 15 or so and go test at distance. Usually 600, 700, 800 yard 5 shot groups. I might fine tune a touch after that with .1 grain, or .0100" seating depth changes, but only if I am not satisfied after the initial seating depth tests or they don't quite meet my standards. Then go and shoot....a bunch, to validate drops and accuracy way out. It has worked phenomenally well for me in a LOT of different rifles. [/QUOTE]
Insert quotes…
Verification
Post reply
Forums
Hunting
Long Range Hunting & Shooting
Load development technique
Top