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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Relationship between CBTO and freebore demension
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<blockquote data-quote="Boisedoc" data-source="post: 2604200" data-attributes="member: 99050"><p>Thank you. I am building off of a Long action - length not a problem. I did read an article (3 inch WSM) where a couple of guys looked at pressure in relation to increasing COAL in a SAAMI chamber and a .250 lead chamber. Long story short, they found increasing the COAL in the SAAMI chamber increased pressure and velocity and increasing COAL did essentially nothing in the long freebore chamber. Made me question just running a SAAMI as all I really want is to hit 2700 plus in a 21" barrel with the 212 and some temp stable powder (H4350 or 4831sc).</p><p></p><p>[URL unfurl="true"]https://loaddata.com/articles/PDF/3-Inch%20300%20WSM.pdf[/URL]</p></blockquote><p></p>
[QUOTE="Boisedoc, post: 2604200, member: 99050"] Thank you. I am building off of a Long action - length not a problem. I did read an article (3 inch WSM) where a couple of guys looked at pressure in relation to increasing COAL in a SAAMI chamber and a .250 lead chamber. Long story short, they found increasing the COAL in the SAAMI chamber increased pressure and velocity and increasing COAL did essentially nothing in the long freebore chamber. Made me question just running a SAAMI as all I really want is to hit 2700 plus in a 21” barrel with the 212 and some temp stable powder (H4350 or 4831sc). [URL unfurl="true"]https://loaddata.com/articles/PDF/3-Inch%20300%20WSM.pdf[/URL] [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Relationship between CBTO and freebore demension
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