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
H1000
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="tbrice23" data-source="post: 849441" data-attributes="member: 59502"><p>I check outside dimensions in 4 places and headspace datum points on the shoulder all my brass between 1st and 2nd firings. Shoulders expand .018 to .020 on headspace and up to .005 diameter first fire form on belted cases.</p><p> That's a lot of expansion compared to non belted cases. </p><p> Since my last post I checked my notes from 1st to 2nd brass firing with the same load on my factory chamber 7mag Sendero I was surprised that the velocities were within 5-10 fps depending on the SD of the group. AND the temp. was 20 degrees difference and using Imr4350!</p><p> Only difference in in groups was once fired brass had less obvious fliers and maybe .01 tighter groups</p></blockquote><p></p>
[QUOTE="tbrice23, post: 849441, member: 59502"] I check outside dimensions in 4 places and headspace datum points on the shoulder all my brass between 1st and 2nd firings. Shoulders expand .018 to .020 on headspace and up to .005 diameter first fire form on belted cases. That's a lot of expansion compared to non belted cases. Since my last post I checked my notes from 1st to 2nd brass firing with the same load on my factory chamber 7mag Sendero I was surprised that the velocities were within 5-10 fps depending on the SD of the group. AND the temp. was 20 degrees difference and using Imr4350! Only difference in in groups was once fired brass had less obvious fliers and maybe .01 tighter groups [/QUOTE]
Insert quotes…
Verification
Post reply
Forums
Rifles, Reloading, Optics, Equipment
Reloading
H1000
Top