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
300 RUM load development questions
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: 748362" data-attributes="member: 5302"><p>I've had no problems full length sizing fired cases without any neck turning not using expander balls. In fact, I've not seen any significant difference between turned and unturned case necks using gelded dies (those without balls but with necks a bit smaller than a loaded round). Both shoot well under 1 MOA through 1000 yards. All with SAAMI spec chambers with lots of clearance around the loaded round's neck. How well a bottleneck case that headspaces on its shoulder centers in the chamber neck has nothing to do with their diameter differences anyway; a .243 Win. round centers perfectly in a .308 Win. chamber neck when fired.</p><p></p><p>There is one advantage of turning case necks. If their wall thickness is 2 thousandths or more, then turn them so at least half the neck cleans up. Zero tolerance isn't needed for best accuracy but a lot of folks think it is.</p></blockquote><p></p>
[QUOTE="Bart B, post: 748362, member: 5302"] I've had no problems full length sizing fired cases without any neck turning not using expander balls. In fact, I've not seen any significant difference between turned and unturned case necks using gelded dies (those without balls but with necks a bit smaller than a loaded round). Both shoot well under 1 MOA through 1000 yards. All with SAAMI spec chambers with lots of clearance around the loaded round's neck. How well a bottleneck case that headspaces on its shoulder centers in the chamber neck has nothing to do with their diameter differences anyway; a .243 Win. round centers perfectly in a .308 Win. chamber neck when fired. There is one advantage of turning case necks. If their wall thickness is 2 thousandths or more, then turn them so at least half the neck cleans up. Zero tolerance isn't needed for best accuracy but a lot of folks think it is. [/QUOTE]
Insert quotes…
Verification
Post reply
Forums
Rifles, Reloading, Optics, Equipment
Reloading
300 RUM load development questions
Top