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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
338 RUM problems
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<blockquote data-quote="D.Camilleri" data-source="post: 184224" data-attributes="member: 2567"><p>I measured the chamber yesterday with several different bullets. I think I am zeroing in on a problem. Nosler partitions are much closer to the lands than Nosler Accubonds, but I had no idea the difference would be .400. There is no way I could ever get an accubond close to the lands without single shotting it, which isn't an option in grizzly country. The partions are showing some promise, so I will start playing with the oal to see if I can shrink the group. I also just bought a lead sled so I can take me out of the equation.</p><p></p><p>I also measured the 250 grain sierra game king and it is within .018 of the 250 grain partition, but with the same powder charge it shot a pattern not a group.</p><p></p><p>Why doesn't this barrel like boat tails? I am strongly thinking it is time for a different barrel, maybe a Mike Rock. Any thoughts?</p></blockquote><p></p>
[QUOTE="D.Camilleri, post: 184224, member: 2567"] I measured the chamber yesterday with several different bullets. I think I am zeroing in on a problem. Nosler partitions are much closer to the lands than Nosler Accubonds, but I had no idea the difference would be .400. There is no way I could ever get an accubond close to the lands without single shotting it, which isn't an option in grizzly country. The partions are showing some promise, so I will start playing with the oal to see if I can shrink the group. I also just bought a lead sled so I can take me out of the equation. I also measured the 250 grain sierra game king and it is within .018 of the 250 grain partition, but with the same powder charge it shot a pattern not a group. Why doesn't this barrel like boat tails? I am strongly thinking it is time for a different barrel, maybe a Mike Rock. Any thoughts? [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
338 RUM problems
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