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Rifles, Reloading, Optics, Equipment
Reloading
Donut on 28 nosler
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<blockquote data-quote="BoatTail" data-source="post: 1613231" data-attributes="member: 74670"><p>I have both a 28 Nosler SAAMI chambered rifle and a match chambered rifle and have not had the donut issue you described after many reloads. I do however sometimes use 26 Nosler Brass when I can't get 28 Nosler and neck it up to 28. The resulting step creates a donut at the case neck, shoulder junction. </p><p></p><p>To make sure we are talking the same thing a donut at the neck shoulder junction is described as a slight bulge you can't see with the naked eye but is caused from the flow of thicker brass from the shoulder to the neck after multiple firing which also lengthens the case (requiring trimming). In my view you can't have a donut unless your cases are stretching from multiple firings or from opening up necks on a case as I have done with the 26 to 28 Nosler reform.</p><p></p><p>To resolve the donut caused by opening up the 26 Nosler to 28 Nosler, I outside neck turn using a 21st Century Shooting neck turner. The process uses a 21st Century expander die to push the donut to the outside. The case is then put in the case holder of the tool and run over a trimming mandrel with a 35 Degree cutter. the cutter is then adjusted down to either skim the neck or a deeper cut to the desired neck thickness.</p><p></p><p>Doing so removes the donut and trues up the neck. Mine is an old version that you provide power with a drill. Here is a video of the new, more expensive version that provides its own power and a lever to move it across the mandrel and cutter.</p><p></p><p>[MEDIA=youtube]o1td_1BLxec[/MEDIA]</p><p></p><p>The thing I like about this is the cutter has that 35 degree cutter shoulder that matches the shoulder angle of the case so it is difficult to cut into the shoulder. 21st Century sells others with matching angles for other cases.</p><p></p><p>In my view inside neck reaming can't be as precise and may not get all of the donut because it is difficult to control the thickness of the neck when inside neck reaming. </p><p></p><p>The 21st Century uses a expander die to get the same inside dimension and then running it over the mandrel while cutting, which controls the neck thickness. </p><p></p><p>I have not used the other outside neck turners that are out there but believe they may provide the same accuracy.</p><p></p><p>Thoughts?</p><p></p><p>I</p></blockquote><p></p>
[QUOTE="BoatTail, post: 1613231, member: 74670"] I have both a 28 Nosler SAAMI chambered rifle and a match chambered rifle and have not had the donut issue you described after many reloads. I do however sometimes use 26 Nosler Brass when I can't get 28 Nosler and neck it up to 28. The resulting step creates a donut at the case neck, shoulder junction. To make sure we are talking the same thing a donut at the neck shoulder junction is described as a slight bulge you can't see with the naked eye but is caused from the flow of thicker brass from the shoulder to the neck after multiple firing which also lengthens the case (requiring trimming). In my view you can't have a donut unless your cases are stretching from multiple firings or from opening up necks on a case as I have done with the 26 to 28 Nosler reform. To resolve the donut caused by opening up the 26 Nosler to 28 Nosler, I outside neck turn using a 21st Century Shooting neck turner. The process uses a 21st Century expander die to push the donut to the outside. The case is then put in the case holder of the tool and run over a trimming mandrel with a 35 Degree cutter. the cutter is then adjusted down to either skim the neck or a deeper cut to the desired neck thickness. Doing so removes the donut and trues up the neck. Mine is an old version that you provide power with a drill. Here is a video of the new, more expensive version that provides its own power and a lever to move it across the mandrel and cutter. [MEDIA=youtube]o1td_1BLxec[/MEDIA] The thing I like about this is the cutter has that 35 degree cutter shoulder that matches the shoulder angle of the case so it is difficult to cut into the shoulder. 21st Century sells others with matching angles for other cases. In my view inside neck reaming can't be as precise and may not get all of the donut because it is difficult to control the thickness of the neck when inside neck reaming. The 21st Century uses a expander die to get the same inside dimension and then running it over the mandrel while cutting, which controls the neck thickness. I have not used the other outside neck turners that are out there but believe they may provide the same accuracy. Thoughts? I [/QUOTE]
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Donut on 28 nosler
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