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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Anyone own a 7mm 300 Win Mag?
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<blockquote data-quote="Broz" data-source="post: 447469" data-attributes="member: 7503"><p>In my opinion the Redding "S" type competition neck bushing die is the only way to go. Then have a 300 win body die if you need to slightly set the shoulder back a bit. The problem with using the bushing neck die to neck the brass from 300 to 7mm is, the redding bushings have only a very slight taper on the bottom and are designed to accept brass that is only slightly larger. So you need to do it with several bushings and small steps. I have always wanted to take a 7mm bushing to a lathe and cut a larger dia slow taper on one side. I think that would do the trick for first time sizing down. Then flip the bushing over or use a second bushing for the final size after fireforming. I have pretty much completely converted to the Redding comp bushing dies. I like to size my necks and body in seperate steps as the body seldom needs sized. I get concentricity of less that .001" T.I.R. as an average and I like that.</p><p> </p><p>Jeff gun)gun)</p></blockquote><p></p>
[QUOTE="Broz, post: 447469, member: 7503"] In my opinion the Redding "S" type competition neck bushing die is the only way to go. Then have a 300 win body die if you need to slightly set the shoulder back a bit. The problem with using the bushing neck die to neck the brass from 300 to 7mm is, the redding bushings have only a very slight taper on the bottom and are designed to accept brass that is only slightly larger. So you need to do it with several bushings and small steps. I have always wanted to take a 7mm bushing to a lathe and cut a larger dia slow taper on one side. I think that would do the trick for first time sizing down. Then flip the bushing over or use a second bushing for the final size after fireforming. I have pretty much completely converted to the Redding comp bushing dies. I like to size my necks and body in seperate steps as the body seldom needs sized. I get concentricity of less that .001" T.I.R. as an average and I like that. Jeff gun)gun) [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Anyone own a 7mm 300 Win Mag?
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