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Rifles, Reloading, Optics, Equipment
Reloading
Stepping down brass for 7mm-300wm
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<blockquote data-quote="BigSwede" data-source="post: 1111555" data-attributes="member: 82574"><p>New build with benchmark m24 8.5 twist at 28" in an HS stock. My Chamber cast neck measures .3175. I have Rcbs gold medal full length bushing dies. I have .330, .325, .315 and .314 neck bushings. I had a hand full of used rem brass. I bumped the shoulder and stepped the neck down with 330, 325, and borrowed .310. (315,314 hadn't come in yet). Anticipation was killin me. Put cruddy 18x scope on and I fired first 3 berger 180's at 400yds and they were a 2.5" triangle. Ok we got potential. My question is in the brass preparation..... <<<Should I trim, chamfer and debur my brass (new winny brass now) before I step it down or after for optimum accuracy?>>>any other brass prep advice on this cartridge welcome.</p><p>Thanks, -Swede</p></blockquote><p></p>
[QUOTE="BigSwede, post: 1111555, member: 82574"] New build with benchmark m24 8.5 twist at 28" in an HS stock. My Chamber cast neck measures .3175. I have Rcbs gold medal full length bushing dies. I have .330, .325, .315 and .314 neck bushings. I had a hand full of used rem brass. I bumped the shoulder and stepped the neck down with 330, 325, and borrowed .310. (315,314 hadn't come in yet). Anticipation was killin me. Put cruddy 18x scope on and I fired first 3 berger 180's at 400yds and they were a 2.5" triangle. Ok we got potential. My question is in the brass preparation..... <<<Should I trim, chamfer and debur my brass (new winny brass now) before I step it down or after for optimum accuracy?>>>any other brass prep advice on this cartridge welcome. Thanks, -Swede [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
Stepping down brass for 7mm-300wm
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