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
Gunsmithing
?Sako Extractor?
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="NesikaChad" data-source="post: 461027" data-attributes="member: 7449"><p>The Sako alteration became popular about 12 years ago. It was the "in thing" to have done on a rifle.</p><p></p><p>Mostly when folks started changing bolt face diameters to accommodate larger (magnum) cartridges.</p><p></p><p>The riff (and reason why I won't install one or even service them) is with a twin lug 90* rotation bolt action the extractor clock position is almost directly in line with the ejection port side raceway when the bolt is in battery. One of the principle reasons why a non rotating extractor is particularly nice to have in a lot of instances. I'm not a particular fan of Savage actions, but they also did a very good job of mitigating escaping gasses by use of a non rotating bolt head.</p><p></p><p>The sako extractor is retained by a spring, plunger, and clever mechanical interaction. There is essentially nothing preventing it from flying out of the receiver in the event of a cartridge separation. Sometimes with very serious consequences.</p><p></p><p>I know of two cases personally that resulted in emergency eye surgery.</p><p></p><p>In studies conducted by other smiths the factory extractor actually out performed the Sako as well. The tests involved rigidly mounting the bolt and applying a steady load to the point of failure.</p><p></p><p>If you insist on changing it, the M-16 extractor is a much better alternative. It is at least retained by a cross pin.</p></blockquote><p></p>
[QUOTE="NesikaChad, post: 461027, member: 7449"] The Sako alteration became popular about 12 years ago. It was the "in thing" to have done on a rifle. Mostly when folks started changing bolt face diameters to accommodate larger (magnum) cartridges. The riff (and reason why I won't install one or even service them) is with a twin lug 90* rotation bolt action the extractor clock position is almost directly in line with the ejection port side raceway when the bolt is in battery. One of the principle reasons why a non rotating extractor is particularly nice to have in a lot of instances. I'm not a particular fan of Savage actions, but they also did a very good job of mitigating escaping gasses by use of a non rotating bolt head. The sako extractor is retained by a spring, plunger, and clever mechanical interaction. There is essentially nothing preventing it from flying out of the receiver in the event of a cartridge separation. Sometimes with very serious consequences. I know of two cases personally that resulted in emergency eye surgery. In studies conducted by other smiths the factory extractor actually out performed the Sako as well. The tests involved rigidly mounting the bolt and applying a steady load to the point of failure. If you insist on changing it, the M-16 extractor is a much better alternative. It is at least retained by a cross pin. [/QUOTE]
Insert quotes…
Verification
Post reply
Forums
Rifles, Reloading, Optics, Equipment
Gunsmithing
?Sako Extractor?
Top