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JE Custom and Lone Wolf 30-338 Lapua Improved Weatherby Mark V
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<blockquote data-quote="Autorotate" data-source="post: 527473" data-attributes="member: 8073"><p>Trophyhunter-Be happy to share. Send me a pm if you still have questions after this post, and we'll get 'em squared up via pm/email or a phone call if needed.</p><p></p><p>On the reamer design (body taper, shoulder angle, neck dia, lead angle, throat specs) I have absolutely zero regrets. In fact, it's turned into the model for all my future wildcats on those respects. I would be remiss to take full credit though...there were some great minds that assisted me, answered questions, and shared their knowledge/experience with me....most all right here on LRH.</p><p></p><p>Case prep</p><p>1. Sinclair .338 neck expander</p><p>2. Turn to uniform neck wall thickness of .0135</p><p>3. Use .334 nk die to neck case down to form false shoulder, using a gauge JE Custom made for the rifle to get the die close, then finally using the chamber and bolt closing force to set the headspace to fine tune the die.</p><p>4. Size remaining cases, creating false shoulder, verifying every 5th round still chambers.</p><p>5. Load</p><p>6. Shoot</p><p>7. Out comes a beautiful fired case</p><p></p><p>I've hunted with non fireformed cases, just necked 'em down a shade more, to give an extra .0015 or so worth of headspace to ensure chambering in the field. Probably not recommended if you're on a dangerous game hunt...but the fireform loads shoot as good as the formed brass, with my limited abilities (3/4 to 1 MOA at 1K yards).</p><p></p><p>One recommendation-obtain a piece of fired brass (like from me<img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite1" alt=":)" title="Smile :)" loading="lazy" data-shortname=":)" /> so that your smith can ensure any feedramp/mag lip modifications are complete. I've had zero issues with the 37.5 deg shoulder and the rifle that JE Custom built...but it'd be a shame for you to get the rifle back, only to find a snag or two when you attempt to repeat fired formed cases through your setup...every rifle is unique, and you're smith should want to fireform cases or have a formed case to ensure feeding reliability. I might just know someone that could square you a way with a case if your using this reamer print <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite1" alt=":)" title="Smile :)" loading="lazy" data-shortname=":)" /></p></blockquote><p></p>
[QUOTE="Autorotate, post: 527473, member: 8073"] Trophyhunter-Be happy to share. Send me a pm if you still have questions after this post, and we'll get 'em squared up via pm/email or a phone call if needed. On the reamer design (body taper, shoulder angle, neck dia, lead angle, throat specs) I have absolutely zero regrets. In fact, it's turned into the model for all my future wildcats on those respects. I would be remiss to take full credit though...there were some great minds that assisted me, answered questions, and shared their knowledge/experience with me....most all right here on LRH. Case prep 1. Sinclair .338 neck expander 2. Turn to uniform neck wall thickness of .0135 3. Use .334 nk die to neck case down to form false shoulder, using a gauge JE Custom made for the rifle to get the die close, then finally using the chamber and bolt closing force to set the headspace to fine tune the die. 4. Size remaining cases, creating false shoulder, verifying every 5th round still chambers. 5. Load 6. Shoot 7. Out comes a beautiful fired case I've hunted with non fireformed cases, just necked 'em down a shade more, to give an extra .0015 or so worth of headspace to ensure chambering in the field. Probably not recommended if you're on a dangerous game hunt...but the fireform loads shoot as good as the formed brass, with my limited abilities (3/4 to 1 MOA at 1K yards). One recommendation-obtain a piece of fired brass (like from me:) so that your smith can ensure any feedramp/mag lip modifications are complete. I've had zero issues with the 37.5 deg shoulder and the rifle that JE Custom built...but it'd be a shame for you to get the rifle back, only to find a snag or two when you attempt to repeat fired formed cases through your setup...every rifle is unique, and you're smith should want to fireform cases or have a formed case to ensure feeding reliability. I might just know someone that could square you a way with a case if your using this reamer print :) [/QUOTE]
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