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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Lost River Ballistics and Moly
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<blockquote data-quote="DANTEC" data-source="post: 26323" data-attributes="member: 685"><p>dear Cybra</p><p></p><p>the frictional coefficient in a barrel is in the neighborhood of 2% or less, so no, it isn't going to reduce friction--not nearly durable enough. </p><p></p><p>I agrre with for the 2% valu but friction in the barrel after engraving phase , pressure peak appear between primer flash ( pressure zero and when engraving start witch is close th peak pressure ) I feel that moly help easy engraving and make pressure lowe , withth same effect as you lubricate metal parts before forming in die .</p><p></p><p>I will fit strain gage on very short barrel ( just 2 inch of rifling ) by the way I will check pressure ratio curse without effect of barrel friction and give you new soon , with the same test barel I will redone the VAUGHT test to put powder moly or the powder load to check if pressure go down with a add of powder moly .</p><p> </p><p>good shooing </p><p></p><p>DAN TEC</p></blockquote><p></p>
[QUOTE="DANTEC, post: 26323, member: 685"] dear Cybra the frictional coefficient in a barrel is in the neighborhood of 2% or less, so no, it isn't going to reduce friction--not nearly durable enough. I agrre with for the 2% valu but friction in the barrel after engraving phase , pressure peak appear between primer flash ( pressure zero and when engraving start witch is close th peak pressure ) I feel that moly help easy engraving and make pressure lowe , withth same effect as you lubricate metal parts before forming in die . I will fit strain gage on very short barrel ( just 2 inch of rifling ) by the way I will check pressure ratio curse without effect of barrel friction and give you new soon , with the same test barel I will redone the VAUGHT test to put powder moly or the powder load to check if pressure go down with a add of powder moly . good shooing DAN TEC [/QUOTE]
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Rifles, Reloading, Optics, Equipment
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Lost River Ballistics and Moly
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