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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
6.5-300rum
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<blockquote data-quote="Chase Curtis" data-source="post: 727464" data-attributes="member: 36218"><p>I have a 6.5-300ultra... I wouldnt build one again.. And my ressoning has NOTHING to do with barrel life.</p><p></p><p>Your ES will be around 50-80fps and it is VERY finiky.. im shooting the 129sst at 3550fps out of a 26" barrel. You can push it a little more but no need.. It just makes it more finiky.. Its VERY hard on brass.. Not to mention the brass prep you have to do...</p><p></p><p>Now it does do what it is suppose to do.. Its flat and has the power.</p><p></p><p>Ive been working on a wildcat off the 257wby case. Neck it up to 6.5 and improve to 35*. I know.. Its only about 1/8 longer than the 264 win mag. And about a 1/4 less than the 300 win. But its showing great things thus far.. 142smk at 3350 fps with an ES of 12 and EASY 1/2 moa at 300 yards. This is out of a 26" pipe...Using retumbo. You could gain more with 869 i bet.. </p><p></p><p>So why would i go through all that crap to gain very little.. At the end of the day the other end has no idea about the added 100fps. </p><p></p><p>Im going to rechamber my 6.5 ultra to 6.5 wby imp.</p><p></p><p>Regardless Internet numbers i can tell you 3500fps with a 140gr pill is tough.. Now a 30" barrel and cool temps sure... But not easy to come by... My max working load with the 142smk in my rifle is 3450ish</p></blockquote><p></p>
[QUOTE="Chase Curtis, post: 727464, member: 36218"] I have a 6.5-300ultra... I wouldnt build one again.. And my ressoning has NOTHING to do with barrel life. Your ES will be around 50-80fps and it is VERY finiky.. im shooting the 129sst at 3550fps out of a 26" barrel. You can push it a little more but no need.. It just makes it more finiky.. Its VERY hard on brass.. Not to mention the brass prep you have to do... Now it does do what it is suppose to do.. Its flat and has the power. Ive been working on a wildcat off the 257wby case. Neck it up to 6.5 and improve to 35*. I know.. Its only about 1/8 longer than the 264 win mag. And about a 1/4 less than the 300 win. But its showing great things thus far.. 142smk at 3350 fps with an ES of 12 and EASY 1/2 moa at 300 yards. This is out of a 26" pipe...Using retumbo. You could gain more with 869 i bet.. So why would i go through all that crap to gain very little.. At the end of the day the other end has no idea about the added 100fps. Im going to rechamber my 6.5 ultra to 6.5 wby imp. Regardless Internet numbers i can tell you 3500fps with a 140gr pill is tough.. Now a 30" barrel and cool temps sure... But not easy to come by... My max working load with the 142smk in my rifle is 3450ish [/QUOTE]
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6.5-300rum
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