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Rifles, Reloading, Optics, Equipment
Reloading
What is the cause of this?
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<blockquote data-quote="flashhole" data-source="post: 1340998" data-attributes="member: 21375"><p>Interesting thread. </p><p></p><p>I have a Ruger #1V 25-06. Most of my brass is HXB 30-06 re-form. My favorite load is the Nosler 115 Ballistic Tip over a full case of Retumbo powder. The load is slightly compressed and near max. Brass is annealed as needed and I did neck turn the batch I'm currently using. I use the K&M neck tool, inside ream, outside turn. The load shoots very accurately in my rifle.</p><p></p><p>I get sooty necks, not as bad as the OP shows in his pictures but they do get a black residue down to the shoulder. Initially I suspected low pressure and inadequate chamber fill from the slow powder. </p><p></p><p>I tried other powders with this bullet and still got sooty necks. Accuracy fell off a bit so I went back to Retumbo.</p><p></p><p>I tried a magnum primer with Retumbo and this bullet and still got sooty necks.</p><p></p><p>Reading some of the posts regarding OAL I went and measured a batch I recently trimmed. SAMMI length is 2.494", my brass measures between 2.483" and 2.485", well below the SAMMI length. </p><p></p><p>I might try trimming some to 2.480" to see if that makes a difference. This is my only rifle where I get sooty necks but I don't pay much attention to it because it's so accurate.</p></blockquote><p></p>
[QUOTE="flashhole, post: 1340998, member: 21375"] Interesting thread. I have a Ruger #1V 25-06. Most of my brass is HXB 30-06 re-form. My favorite load is the Nosler 115 Ballistic Tip over a full case of Retumbo powder. The load is slightly compressed and near max. Brass is annealed as needed and I did neck turn the batch I'm currently using. I use the K&M neck tool, inside ream, outside turn. The load shoots very accurately in my rifle. I get sooty necks, not as bad as the OP shows in his pictures but they do get a black residue down to the shoulder. Initially I suspected low pressure and inadequate chamber fill from the slow powder. I tried other powders with this bullet and still got sooty necks. Accuracy fell off a bit so I went back to Retumbo. I tried a magnum primer with Retumbo and this bullet and still got sooty necks. Reading some of the posts regarding OAL I went and measured a batch I recently trimmed. SAMMI length is 2.494", my brass measures between 2.483" and 2.485", well below the SAMMI length. I might try trimming some to 2.480" to see if that makes a difference. This is my only rifle where I get sooty necks but I don't pay much attention to it because it's so accurate. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
What is the cause of this?
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