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Rifles, Reloading, Optics, Equipment
Reloading
Fireforming brass for custom dies (Ackley Improved cases)
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<blockquote data-quote="milanuk" data-source="post: 1972257" data-attributes="member: 376"><p>So... I've got a reamer on the way for a new project (.338LM Imp. 40 degree). I'd like to get some dies made for it; looking at sending some fired cases to Whidden for that purpose. But, a couple questions first:</p><p></p><p>1. Is simply fire-forming 1x with a full-power load for the parent cartridge enough? In the past, when I've had other custom dies made (for non-improved cases) the manufacturer specified the cases should be 2-3x fired, neck-size only in between firings, to fully form to the chamber so they could make the dies to match.</p><p></p><p>2. If the cases *do* need to be FF more than once... how do I do that with a set of standard/parent cartridge dies? I've seen one recommendation to get a Wilson neck die blank cut with the chambering reamer, and use that to neck size the cases. That person uses primarily neck-sizing, though, and I do not. I'd like to avoid the extra hassle/expense of having a die made for the sole purpose of fireforming 3 or so cases 2-3x - seems like a waste.</p><p></p><p>Is there some other option I'm overlooking here?</p></blockquote><p></p>
[QUOTE="milanuk, post: 1972257, member: 376"] So... I've got a reamer on the way for a new project (.338LM Imp. 40 degree). I'd like to get some dies made for it; looking at sending some fired cases to Whidden for that purpose. But, a couple questions first: 1. Is simply fire-forming 1x with a full-power load for the parent cartridge enough? In the past, when I've had other custom dies made (for non-improved cases) the manufacturer specified the cases should be 2-3x fired, neck-size only in between firings, to fully form to the chamber so they could make the dies to match. 2. If the cases *do* need to be FF more than once... how do I do that with a set of standard/parent cartridge dies? I've seen one recommendation to get a Wilson neck die blank cut with the chambering reamer, and use that to neck size the cases. That person uses primarily neck-sizing, though, and I do not. I'd like to avoid the extra hassle/expense of having a die made for the sole purpose of fireforming 3 or so cases 2-3x - seems like a waste. Is there some other option I'm overlooking here? [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
Fireforming brass for custom dies (Ackley Improved cases)
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