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Long Range Hunting & Shooting
Q&A: 300 WM with 210 gr VLD Hunting Project
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<blockquote data-quote="Mc Fraser" data-source="post: 1626621" data-attributes="member: 106529"><p>Hello Everyone, </p><p>The range is open, and the weather is coming along nicely, I will be working on load development here shortly. </p><p>This week I'm dedicating it to case preparations, and I have a few things on my mind that I would like to clarify: </p><p>1. Berger reloading manual has the case length at 2.6201" and case trim length to 2.6101". With my case trimmer, I can't seem to be able to trim to an exact, consistent length, but it does fall between 2.6201" and 2.6101". Should I be worried, with respect to accuracy and consistency? Are other people's trimmers consistent?</p><p>2. All my neck's concentricity is within 0.5-2 thou, without a bullet. For load development at 100-200 yds do you think I should turn the necks? I'm using Hornady brass.</p><p></p><p>Back to load development.</p><p></p><p>My plan is to follow Greyfox's steps which are very similar to Bergers suggestion. </p><p>I still have a few questions that I am hoping to find an answer for:</p><p>1. My rifle's distance from tip of the bullet to face bolt is 3.4430" with the bullet slightly jammed. The method that we used was to measure the length with a rod from the muzzle pushed to face bolt with the bolt closed and then slightly jam the bullet in and measure from muzzle again, the difference calculated is 3.4430" with 210 vld bullet. SAAMI COAL is 3.3402in. H<strong>ow would you use this information to determine testing setting depths?</strong> My idea is to back 0.015" to compensate for the slightly jammed bullet and try the following COAL's: 3.418, 3.398, 3.388, 3.378, 3.368, 3.358 (subtract 10 thou every time)</p><p>or 3.418, 3.413, 3.398, 3.383, 3.368, 3.353 (subtract 15thou every time)</p><p>or</p><p>3.418, 3.403, 3.393, 3.378, 3.363</p><p><strong>Am I overthinking it? </strong></p><p><strong></strong></p><p>2. I've been watching a lot of youtube videos lately and I stumbled upon this video</p><p>[MEDIA=youtube]ACyfeeBHVOA[/MEDIA] which describes the ladder test. For someone that has access to a labradar and all other things being equal should I try this development method instead of step 3 of the one mentioned above because it saves time and money? What I mean is, instead of 5 rounds each go with one each to find the velocity nodes.</p><p>Berger reloading book has 75.5gr of H1000 as max load, would you start at 74.5gr and work your way up until you see pressure signs? Does the step make a huge difference? Scott uses .2 increments, will something higher work as well? </p><p>Basically, I will try to find a setting depth node and a velocity node. </p><p></p><p>3. I haven't decided what powder will I use yet but I narrowed it down to H1000 because it seems to work well with 300wm. Another option is IMR 7828SSC because a friend of mine had some very promising results with the same bullet and the last option is Retumbo because of Greyfox <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite1" alt=":)" title="Smile :)" loading="lazy" data-shortname=":)" /> and i like an extra 100 ft/s.</p><p></p><p>Interesting max limits from Lee reloading manual for 210 bullets and berger manual for 210 vld bullets:</p><p>Lee reloading book</p><p>H Retumbo - 78c @ 2872 ft/s</p><p>IMR7828SSC - unavailable </p><p>H1000 - 77 @ 2826 ft/s 62341psi</p><p></p><p>Berger</p><p>IMR7828SSC 71.4 @ 2849 ft/s</p><p>h1000 75.5 2804 ft/s</p><p>retumbo 79.6 @ 2874 ft/s</p><p></p><p>I appreciate all your advice in advance. </p><p></p><p>Thanks,</p><p>Mc Fraser.</p></blockquote><p></p>
[QUOTE="Mc Fraser, post: 1626621, member: 106529"] Hello Everyone, The range is open, and the weather is coming along nicely, I will be working on load development here shortly. This week I'm dedicating it to case preparations, and I have a few things on my mind that I would like to clarify: 1. Berger reloading manual has the case length at 2.6201" and case trim length to 2.6101". With my case trimmer, I can't seem to be able to trim to an exact, consistent length, but it does fall between 2.6201" and 2.6101". Should I be worried, with respect to accuracy and consistency? Are other people's trimmers consistent? 2. All my neck's concentricity is within 0.5-2 thou, without a bullet. For load development at 100-200 yds do you think I should turn the necks? I'm using Hornady brass. Back to load development. My plan is to follow Greyfox's steps which are very similar to Bergers suggestion. I still have a few questions that I am hoping to find an answer for: 1. My rifle's distance from tip of the bullet to face bolt is 3.4430" with the bullet slightly jammed. The method that we used was to measure the length with a rod from the muzzle pushed to face bolt with the bolt closed and then slightly jam the bullet in and measure from muzzle again, the difference calculated is 3.4430" with 210 vld bullet. SAAMI COAL is 3.3402in. H[B]ow would you use this information to determine testing setting depths?[/B] My idea is to back 0.015" to compensate for the slightly jammed bullet and try the following COAL's: 3.418, 3.398, 3.388, 3.378, 3.368, 3.358 (subtract 10 thou every time) or 3.418, 3.413, 3.398, 3.383, 3.368, 3.353 (subtract 15thou every time) or 3.418, 3.403, 3.393, 3.378, 3.363 [B]Am I overthinking it? [/B] 2. I've been watching a lot of youtube videos lately and I stumbled upon this video [MEDIA=youtube]ACyfeeBHVOA[/MEDIA] which describes the ladder test. For someone that has access to a labradar and all other things being equal should I try this development method instead of step 3 of the one mentioned above because it saves time and money? What I mean is, instead of 5 rounds each go with one each to find the velocity nodes. Berger reloading book has 75.5gr of H1000 as max load, would you start at 74.5gr and work your way up until you see pressure signs? Does the step make a huge difference? Scott uses .2 increments, will something higher work as well? Basically, I will try to find a setting depth node and a velocity node. 3. I haven't decided what powder will I use yet but I narrowed it down to H1000 because it seems to work well with 300wm. Another option is IMR 7828SSC because a friend of mine had some very promising results with the same bullet and the last option is Retumbo because of Greyfox :) and i like an extra 100 ft/s. Interesting max limits from Lee reloading manual for 210 bullets and berger manual for 210 vld bullets: Lee reloading book H Retumbo - 78c @ 2872 ft/s IMR7828SSC - unavailable H1000 - 77 @ 2826 ft/s 62341psi Berger IMR7828SSC 71.4 @ 2849 ft/s h1000 75.5 2804 ft/s retumbo 79.6 @ 2874 ft/s I appreciate all your advice in advance. Thanks, Mc Fraser. [/QUOTE]
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Q&A: 300 WM with 210 gr VLD Hunting Project
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