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
Semi Custom Kimber Montana 280AI
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="yawn" data-source="post: 940285" data-attributes="member: 13540"><p>This is muddying the waters some what but OK. </p><p> yes the .014 is supposedly the difference between the traditional ackley and the new saami version. The discusion revolves around the new Saami spec being .014 shorter in head space when fired in a tradional chamber, ie the brass gets .014 longer after firing. </p><p>The points you raise are correct when looking at the designated datums on the drawings but that's not where the physical contact occurs when chambering a standard 280 round in an improved chamber.Because of the 40 deg shoulder it contacts much closer the to the neck shoulder junction at which point the standard .280 rem is longer at 2.192 than the saami ackley at 2.174 creating the light crush. </p><p>What's happening in your chamber I have I no idea.</p></blockquote><p></p>
[QUOTE="yawn, post: 940285, member: 13540"] This is muddying the waters some what but OK. yes the .014 is supposedly the difference between the traditional ackley and the new saami version. The discusion revolves around the new Saami spec being .014 shorter in head space when fired in a tradional chamber, ie the brass gets .014 longer after firing. The points you raise are correct when looking at the designated datums on the drawings but that's not where the physical contact occurs when chambering a standard 280 round in an improved chamber.Because of the 40 deg shoulder it contacts much closer the to the neck shoulder junction at which point the standard .280 rem is longer at 2.192 than the saami ackley at 2.174 creating the light crush. What's happening in your chamber I have I no idea. [/QUOTE]
Insert quotes…
Verification
Post reply
Forums
Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Semi Custom Kimber Montana 280AI
Top