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Rifles, Reloading, Optics, Equipment
Gunsmithing
.280 Ackley Improved build questions
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<blockquote data-quote="fj40mojo" data-source="post: 500817" data-attributes="member: 19129"><p><u>Here are the specs</u>:</p><p>FN Mauser 98 Action</p><p>Krieger #3 Sporter Contour 1:9 .284/7mm @26"</p><p>B&C Medalist Varmint stock</p><p>Tubbs Speedlock firing pin and spring</p><p>Timney Featherweight Trigger</p><p>EGW 20 MOA Rail</p><p>IOR Valdata 10X with MP8 reticle</p><p> </p><p><u>Plan</u>:</p><p>160-180grn bullets from Norma fireformed brass</p><p> </p><p><u>Here's the questions</u>:</p><p>#1. Can anybody tell me the average neck thickness of Norma .280 brass? I am considering having a custom reamer made and want to know so I can calculate optimum neck diameter and not have to neck turn.</p><p> </p><p>#2. Can I cut a custom sizing die with the same reamer used to cut my chamber? I plan on building a bushing type die so basically all the die would be doing is bumping the shoulder and mild body sizing. Bushings would be purchased not built.</p><p> </p><p>#3. I need some dimensions from the 7mm 180grn Berger Hunting VLD-length from base to Ogive and Overall length to calculate throat and COAL.</p><p> </p><p>Thanks in advance for the help.</p></blockquote><p></p>
[QUOTE="fj40mojo, post: 500817, member: 19129"] [U]Here are the specs[/U]: FN Mauser 98 Action Krieger #3 Sporter Contour 1:9 .284/7mm @26" B&C Medalist Varmint stock Tubbs Speedlock firing pin and spring Timney Featherweight Trigger EGW 20 MOA Rail IOR Valdata 10X with MP8 reticle [U]Plan[/U]: 160-180grn bullets from Norma fireformed brass [U]Here's the questions[/U]: #1. Can anybody tell me the average neck thickness of Norma .280 brass? I am considering having a custom reamer made and want to know so I can calculate optimum neck diameter and not have to neck turn. #2. Can I cut a custom sizing die with the same reamer used to cut my chamber? I plan on building a bushing type die so basically all the die would be doing is bumping the shoulder and mild body sizing. Bushings would be purchased not built. #3. I need some dimensions from the 7mm 180grn Berger Hunting VLD-length from base to Ogive and Overall length to calculate throat and COAL. Thanks in advance for the help. [/QUOTE]
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.280 Ackley Improved build questions
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