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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
7MM - Need to make a choice
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<blockquote data-quote="AZShooter" data-source="post: 836796" data-attributes="member: 5219"><p>Fergus,</p><p></p><p>Gunwerks loaned a reamer to someone here. Gunwerks has the brass, and dies at fairly reasonable prices. I'd give them a call. </p><p></p><p>What I did was for the sake of a challenge and I have around 80 die sets. If you are still interested here are the steps on how I did it:</p><p></p><p>Procedure for necking down 375 Ruger</p><p></p><p>1) Hornady 338 RCM FL die</p><p>2) 300 RUM FL die to taper mouth of case </p><p>3) 7 RUM seater die followed by FL to reduce neck dia </p><p>4) Whidden 338 RCM bushing die with .329 bushing</p><p>5) Whidden 338 RCM bushing die with .312 bushing</p><p>6) Open up with K and N mandrel, neck turn to .013" neck wall thickness</p><p>7) Run brass into Whidden 338 RCM bushing die using .310 bushing</p></blockquote><p></p>
[QUOTE="AZShooter, post: 836796, member: 5219"] Fergus, Gunwerks loaned a reamer to someone here. Gunwerks has the brass, and dies at fairly reasonable prices. I'd give them a call. What I did was for the sake of a challenge and I have around 80 die sets. If you are still interested here are the steps on how I did it: Procedure for necking down 375 Ruger 1) Hornady 338 RCM FL die 2) 300 RUM FL die to taper mouth of case 3) 7 RUM seater die followed by FL to reduce neck dia 4) Whidden 338 RCM bushing die with .329 bushing 5) Whidden 338 RCM bushing die with .312 bushing 6) Open up with K and N mandrel, neck turn to .013” neck wall thickness 7) Run brass into Whidden 338 RCM bushing die using .310 bushing [/QUOTE]
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Rifles, Reloading, Optics, Equipment
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7MM - Need to make a choice
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