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 Sizing
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="Bart B" data-source="post: 829805" data-attributes="member: 5302"><p>I've checked several cases for runout between the extractor groove and the pressure ring about 2/10ths inch in front of the case head. Few have zero runout and the rest vary up to 3 or 4 thousandths. Therefore, it's my opinion that the extractor groove will be off center in the chamber by half the amount of total indicated runout to the pressure ring as the extractor's pushing the case against the chamber wall opposite its place on the bolt face when the bolt's closed.</p><p></p><p>I use the pressure ring as my rear reference as that's the part of the back end of the case that's against the chamber when the round's ready to shoot. The front of the case at the shoulder's centered in the chamber shoulder as you've mentioned and it's the front reference.</p></blockquote><p></p>
[QUOTE="Bart B, post: 829805, member: 5302"] I've checked several cases for runout between the extractor groove and the pressure ring about 2/10ths inch in front of the case head. Few have zero runout and the rest vary up to 3 or 4 thousandths. Therefore, it's my opinion that the extractor groove will be off center in the chamber by half the amount of total indicated runout to the pressure ring as the extractor's pushing the case against the chamber wall opposite its place on the bolt face when the bolt's closed. I use the pressure ring as my rear reference as that's the part of the back end of the case that's against the chamber when the round's ready to shoot. The front of the case at the shoulder's centered in the chamber shoulder as you've mentioned and it's the front reference. [/QUOTE]
Insert quotes…
Verification
Post reply
Forums
Rifles, Reloading, Optics, Equipment
Reloading
Neck Sizing
Top