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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Overbore Index Chart & 26 Nosler
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<blockquote data-quote="Greyfox" data-source="post: 1006215" data-attributes="member: 10291"><p>Being an avid 6.5-284 shooter, the single most frequent comment tht I will get is "Oh, that's a barrel burner!". The Accurate Shooter chart really gives some perspective on the rational for this reputation. This reputation that originated with the competitive target shooting crowd was established because their point of comparisison were the calibers that were in the mid to lower hundreds in the white portion of the chart. Because of this the barrel burner reputation was established. In reality, and what has been my practical experience is that the 6.5-284's falls somewhere in the middle of the high performance hunting cartridges. As a comparison, my competitive 308 barrels that were shot hot, in high volumes would begin to loose accuracy(..25-.5MOA to .5-.75MOA) at around 2300 shots. I expect the 308's would have held out for +3000 shots if shot cooler. My 270WSM, 300WBY, when shot cool, would start to see accuracy erosion at 600 rounds. I would expect the 260 Nosker to fall in this range. 6.5-284's which are in the mid range of the orange section of the chart, seem to display accuracy erosion, when not allowed to overheat, in 1100-1300 range. There are some very popualar hunting cartridges that will burn a barrel faster than the 6.5x284. This was not a scientific study, just observations, but seem to be consistent with a few of my buddies experiences. While I will consider barrel life with my target rifles, I never paid too much mind to it for hunting, </p><p>particularly since I started shooting at longer ranges.IMO</p></blockquote><p></p>
[QUOTE="Greyfox, post: 1006215, member: 10291"] Being an avid 6.5-284 shooter, the single most frequent comment tht I will get is "Oh, that's a barrel burner!". The Accurate Shooter chart really gives some perspective on the rational for this reputation. This reputation that originated with the competitive target shooting crowd was established because their point of comparisison were the calibers that were in the mid to lower hundreds in the white portion of the chart. Because of this the barrel burner reputation was established. In reality, and what has been my practical experience is that the 6.5-284's falls somewhere in the middle of the high performance hunting cartridges. As a comparison, my competitive 308 barrels that were shot hot, in high volumes would begin to loose accuracy(..25-.5MOA to .5-.75MOA) at around 2300 shots. I expect the 308's would have held out for +3000 shots if shot cooler. My 270WSM, 300WBY, when shot cool, would start to see accuracy erosion at 600 rounds. I would expect the 260 Nosker to fall in this range. 6.5-284's which are in the mid range of the orange section of the chart, seem to display accuracy erosion, when not allowed to overheat, in 1100-1300 range. There are some very popualar hunting cartridges that will burn a barrel faster than the 6.5x284. This was not a scientific study, just observations, but seem to be consistent with a few of my buddies experiences. While I will consider barrel life with my target rifles, I never paid too much mind to it for hunting, particularly since I started shooting at longer ranges.IMO [/QUOTE]
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Rifles, Reloading, Optics, Equipment
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Overbore Index Chart & 26 Nosler
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