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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Bartlein Press Release - New Barrel Material
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<blockquote data-quote="Bob Wright" data-source="post: 1947810" data-attributes="member: 104363"><p>There is a 403 alloy available from Penn Steel. It's chemistry is additional Chromium at 11.5-13% vs ~12% on 416R. To be corrosion resistant (stainless) requires 10% minimum chrome content. Other chemistry add-ins improve machinabilty, and other qualities to work as barrel steel.</p><p>My money is on a higher chrome content in the 400MODBB steel. Possibly other chemicals to improve but not eliminate higher tool wear in drilling, reaming and rifling. The end user will see chamber reamer wear as they mentioned.</p><p>I'm glad Bartlein has researched and now bringing new metallurgy to the barrel market. </p><p>From my experience in aero, its a great thing. The buyer will ultimately decide whether it's a great thing. I'll watch once the results are fielded, tested and reported on. Hoping success for Bartlein and that they open up some of their data for all to see.</p></blockquote><p></p>
[QUOTE="Bob Wright, post: 1947810, member: 104363"] There is a 403 alloy available from Penn Steel. It's chemistry is additional Chromium at 11.5-13% vs ~12% on 416R. To be corrosion resistant (stainless) requires 10% minimum chrome content. Other chemistry add-ins improve machinabilty, and other qualities to work as barrel steel. My money is on a higher chrome content in the 400MODBB steel. Possibly other chemicals to improve but not eliminate higher tool wear in drilling, reaming and rifling. The end user will see chamber reamer wear as they mentioned. I'm glad Bartlein has researched and now bringing new metallurgy to the barrel market. From my experience in aero, its a great thing. The buyer will ultimately decide whether it's a great thing. I'll watch once the results are fielded, tested and reported on. Hoping success for Bartlein and that they open up some of their data for all to see. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
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Bartlein Press Release - New Barrel Material
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