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Long Range Hunting & Shooting
Necking down 408 cheytac to .338
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<blockquote data-quote="Joel Russo" data-source="post: 509705" data-attributes="member: 6152"><p>Before I started using the brass we had custom made for this caliber, I prepped thousands of pieces of the .408 Jamison stuff...</p><p>Don't make it anymore difficult than it has to be. </p><p>Like I said before, go from .408 to .375, then to .338. Use your .338 mandrel, then neck turn. With the Jamison brass and a .365 nk, you will need to turn the brass to about .012" neck thickness. I had thousands of pieces of Lot 210 from Jamison and .012" worked fine with my .365 nk.</p><p>Anneal after neck turning. Forget the cream of wheat routine, not a good Idea..</p><p>Just fire form while doing load development.</p></blockquote><p></p>
[QUOTE="Joel Russo, post: 509705, member: 6152"] Before I started using the brass we had custom made for this caliber, I prepped thousands of pieces of the .408 Jamison stuff... Don't make it anymore difficult than it has to be. Like I said before, go from .408 to .375, then to .338. Use your .338 mandrel, then neck turn. With the Jamison brass and a .365 nk, you will need to turn the brass to about .012" neck thickness. I had thousands of pieces of Lot 210 from Jamison and .012" worked fine with my .365 nk. Anneal after neck turning. Forget the cream of wheat routine, not a good Idea.. Just fire form while doing load development. [/QUOTE]
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Necking down 408 cheytac to .338
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