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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Proof Barrels And Shermans.....WOW !
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<blockquote data-quote="lancetkenyon" data-source="post: 2486988" data-attributes="member: 68875"><p>I have 8 Proof CF barrels. Some get good speeds, some are slower. All are accurate. </p><p>I did have one 26" 6.5mm 1:7.5" on a 6.5SS. My 20" would almost match it for speed. It would pressure up 3 gr below where any of my other 6.5SSs would. But stupid accurate. I pulled it and put a Bartlein 24" 6.5 1:7.5" and chambered it in .260AI. That new barrel, pushing the same 140 Hyb, is only only 100fps slower for 2" shorter barrel length and 12gr less powder. </p><p>I built a new 26" Bartlein 6.5SS, and even new, got 110fps more with 0 pressure with the same max load as the proof ran. All components same lot, as I just tested the old rounds I had loaded up.</p></blockquote><p></p>
[QUOTE="lancetkenyon, post: 2486988, member: 68875"] I have 8 Proof CF barrels. Some get good speeds, some are slower. All are accurate. I did have one 26" 6.5mm 1:7.5" on a 6.5SS. My 20" would almost match it for speed. It would pressure up 3 gr below where any of my other 6.5SSs would. But stupid accurate. I pulled it and put a Bartlein 24" 6.5 1:7.5" and chambered it in .260AI. That new barrel, pushing the same 140 Hyb, is only only 100fps slower for 2" shorter barrel length and 12gr less powder. I built a new 26" Bartlein 6.5SS, and even new, got 110fps more with 0 pressure with the same max load as the proof ran. All components same lot, as I just tested the old rounds I had loaded up. [/QUOTE]
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Proof Barrels And Shermans.....WOW !
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