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
Rifles, Bullets, Barrels & Ballistics
Factory vs. Custom chamber dimensions
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="J E Custom" data-source="post: 261276" data-attributes="member: 2736"><p>I have had to set back and rechamber many factory barrels for all kinds of reasons and some would clean up with only .030 to .040 and some have needed .100 thousand + to remove an </p><p>out of round chamber. The best factory chamber I have found took less than .008 to clean up </p><p>to SAMMI spects.</p><p></p><p>Head space is another problem with a lot of factory rifles. .003 or .004 thousands is with in </p><p>spec. but can and will cause case strech and after a few times of full length sizing can cause </p><p>case head seperation.</p><p></p><p>So a tight chamber and minium headspace will increase case life especially if you neck size</p><p>only for 3 or 4 times and normaly improve accuracy.</p><p></p><p>The main differance between a factory rifle and a custom is the tolerances.( A factory rifle</p><p>can be minimum to maximum tolerances where a custom rifle/barrel will be as near to minimum</p><p>spects.as possible.</p><p></p><p>Just like mass produced cars you have good factory rifles and you have lemons.</p><p></p><p>J E CUSTOM</p></blockquote><p></p>
[QUOTE="J E Custom, post: 261276, member: 2736"] I have had to set back and rechamber many factory barrels for all kinds of reasons and some would clean up with only .030 to .040 and some have needed .100 thousand + to remove an out of round chamber. The best factory chamber I have found took less than .008 to clean up to SAMMI spects. Head space is another problem with a lot of factory rifles. .003 or .004 thousands is with in spec. but can and will cause case strech and after a few times of full length sizing can cause case head seperation. So a tight chamber and minium headspace will increase case life especially if you neck size only for 3 or 4 times and normaly improve accuracy. The main differance between a factory rifle and a custom is the tolerances.( A factory rifle can be minimum to maximum tolerances where a custom rifle/barrel will be as near to minimum spects.as possible. Just like mass produced cars you have good factory rifles and you have lemons. J E CUSTOM [/QUOTE]
Insert quotes…
Verification
Post reply
Forums
Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Factory vs. Custom chamber dimensions
Top