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
Ladder testing at 1k- Detailed article and video
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="Alan Griffith" data-source="post: 1098281" data-attributes="member: 4686"><p>I'm going on the record to say i've modified my procedure slightly. I now run an initial OAL seating depth test before running the ladder. </p><p></p><p>I load up 4 batches of 3-shot groups seated .005", .045", .085" and .120" off the lands. I shoot those to determine if the barrel/bullet/powder combination prefers something, right up front. </p><p></p><p>I just completed my testing of Rel 17 and both the 129 and 142 gr LRAB in my light 6.5x47 and those are such long bullets, I had to run an initial OAL length test using .005", .020", .040" and .060" off the lands. </p><p></p><p>I ended up with the 129 gr giving me .55 moa, 2977 fps and 10 SD for a 5-shot group. The 142 gr LRAB went .65 moa, 2803 fps and 10 SD. These were both on cases that were on their 23rd firing. Maybe if I used new/newer brass the SD would reduce. 24.5" #3 Bartlein barrel.</p><p></p><p>Alan</p></blockquote><p></p>
[QUOTE="Alan Griffith, post: 1098281, member: 4686"] I'm going on the record to say i've modified my procedure slightly. I now run an initial OAL seating depth test before running the ladder. I load up 4 batches of 3-shot groups seated .005", .045", .085" and .120" off the lands. I shoot those to determine if the barrel/bullet/powder combination prefers something, right up front. I just completed my testing of Rel 17 and both the 129 and 142 gr LRAB in my light 6.5x47 and those are such long bullets, I had to run an initial OAL length test using .005", .020", .040" and .060" off the lands. I ended up with the 129 gr giving me .55 moa, 2977 fps and 10 SD for a 5-shot group. The 142 gr LRAB went .65 moa, 2803 fps and 10 SD. These were both on cases that were on their 23rd firing. Maybe if I used new/newer brass the SD would reduce. 24.5" #3 Bartlein barrel. Alan [/QUOTE]
Insert quotes…
Verification
Post reply
Forums
Rifles, Reloading, Optics, Equipment
Reloading
Ladder testing at 1k- Detailed article and video
Top