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
Neck expansion
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="MNbogboy" data-source="post: 1971507" data-attributes="member: 18849"><p>I've witnessed this several times. Most times your bore scope will reveal carbon in the case mouth end of the chamber. Not enough to impinge on bullet release or chambering but with "spring back" it will return to slightly less than bullet diameter.</p><p>A second cause seen once in a rechamber was "shadow" of the old chamber allowing the rear of the neck to expand a tiny bit (less than 2 tenths of a thou). Don't know why but outside turning another 1/2 thou stopped it.</p><p></p><p>My first inspection on all fired brass is checking case mouth with a new bullet. Finds the neck carbon issue everytime.</p></blockquote><p></p>
[QUOTE="MNbogboy, post: 1971507, member: 18849"] I've witnessed this several times. Most times your bore scope will reveal carbon in the case mouth end of the chamber. Not enough to impinge on bullet release or chambering but with "spring back" it will return to slightly less than bullet diameter. A second cause seen once in a rechamber was "shadow" of the old chamber allowing the rear of the neck to expand a tiny bit (less than 2 tenths of a thou). Don't know why but outside turning another 1/2 thou stopped it. My first inspection on all fired brass is checking case mouth with a new bullet. Finds the neck carbon issue everytime. [/QUOTE]
Insert quotes…
Verification
Post reply
Forums
Rifles, Reloading, Optics, Equipment
Reloading
Neck expansion
Top