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
Got a real brain buster
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="Loner" data-source="post: 567294" data-attributes="member: 24560"><p>Check the end of the bore with a ball gauge and mic it. And just out of curiousity, did</p><p>you work up a new load for the once fired brass? The original 7stw brass was 8mm brass.</p><p>It specs slightly larger in front of the belt. The whole industry went with 300 mag spec</p><p>brass in that dimension and the cases really expand a lot on that first firing. Guys routinely used to chamber 7mm to stw and they would always clean up. I have some of</p><p>the old brass unfired and you couldn't chamber it in a newer tight chamber. I would</p><p>guess that Sako is true to the original specs. </p><p>You will find the specs to be .513 for the stw and .511 for the</p><p>H&H 300. That extra .002 of expansion may be enough to really drop your speeds.</p></blockquote><p></p>
[QUOTE="Loner, post: 567294, member: 24560"] Check the end of the bore with a ball gauge and mic it. And just out of curiousity, did you work up a new load for the once fired brass? The original 7stw brass was 8mm brass. It specs slightly larger in front of the belt. The whole industry went with 300 mag spec brass in that dimension and the cases really expand a lot on that first firing. Guys routinely used to chamber 7mm to stw and they would always clean up. I have some of the old brass unfired and you couldn't chamber it in a newer tight chamber. I would guess that Sako is true to the original specs. You will find the specs to be .513 for the stw and .511 for the H&H 300. That extra .002 of expansion may be enough to really drop your speeds. [/QUOTE]
Insert quotes…
Verification
Post reply
Forums
Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Got a real brain buster
Top