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
Finding Jam - I thought I knew how
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="QuietTexan" data-source="post: 2069329" data-attributes="member: 116181"><p>If you want to use a bolt-close method, then you'll want to check the runout. This would be the biggest concern because you're sticking a bullet into the lands that has a good bit of resistance to it sliding back into the case because you're using a sized case. If the bullet goes into the throat out of true, you'll never get a repeatable measurement because it can hang up differently each time. The ejector pushing the round to one side as the bullet goes into the throat, so it's common to take that out, or tape it down somehow so it's not in play when taking the measurements</p><p></p><p>If you don't want to strip the bolt and check for runout on your bullets (rolling them on the table would probably work here), try cutting the neck on a case. As thin as you can using a thin Dremel wheel, from the end of the neck straight down through the shoulder. Deburr it well inside and out with a small file. The cut neck will have less resistance and the bullet shouldn't have as much runout once you pull it out of the chamber, plus you can index the case the same each time, and scribe a line on the bullet to start at the same seating depth each time. If you get better repeatability great, if not it's just one case you cut up.</p></blockquote><p></p>
[QUOTE="QuietTexan, post: 2069329, member: 116181"] If you want to use a bolt-close method, then you'll want to check the runout. This would be the biggest concern because you're sticking a bullet into the lands that has a good bit of resistance to it sliding back into the case because you're using a sized case. If the bullet goes into the throat out of true, you'll never get a repeatable measurement because it can hang up differently each time. The ejector pushing the round to one side as the bullet goes into the throat, so it's common to take that out, or tape it down somehow so it's not in play when taking the measurements If you don't want to strip the bolt and check for runout on your bullets (rolling them on the table would probably work here), try cutting the neck on a case. As thin as you can using a thin Dremel wheel, from the end of the neck straight down through the shoulder. Deburr it well inside and out with a small file. The cut neck will have less resistance and the bullet shouldn't have as much runout once you pull it out of the chamber, plus you can index the case the same each time, and scribe a line on the bullet to start at the same seating depth each time. If you get better repeatability great, if not it's just one case you cut up. [/QUOTE]
Insert quotes…
Verification
Post reply
Forums
Rifles, Reloading, Optics, Equipment
Reloading
Finding Jam - I thought I knew how
Top