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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="ShtrRdy" data-source="post: 1626840" data-attributes="member: 40852"><p>As I'm sure you're aware after digging around on the internet there are several proposed ways to do loading development. I use the Berger 210 VLD in my long range 300 Win Mag rifle powered by H1000. I didn't do much seating depth testing but rather settled on touching the lands with the bullet.</p><p></p><p>The VLD bullets are known to be difficult to tune. So if this is the first time you're doing a load development I would recommend the following:</p><p>1. Use once or twice fired brass that has been fired in the rifle.</p><p>2. Figure out why you have 0.01" variation in length trim. 0.005" or less would be better.</p><p>3. Measure the run out on the fired brass. Less than 0.002" sounds good.</p><p>4. Find the Cartridge Overall Length, ( COAL ), for VLD bullet touching the lands. Use this to start.</p><p>5. I like to use the OCW type of method but I don't do the Round Robin sequence. If you want to try the Satterlee method give it a try. I haven't actually done it this way but I think it has merit based on my measuring velocity after doing the OCW.</p><p></p><p>I don't think you need to be trimming neck thickness, unless that brass is really bad.</p><p></p><p>Do you understand the concept of resizing the brass so that the shoulder is only pushed back a couple thousandths?</p><p></p><p>This link was in a different thread. Just read the first post, not all the pages.</p><p><a href="http://forum.accurateshooter.com/threads/long-range-load-development-at-100-yards.3814361/" target="_blank">http://forum.accurateshooter.com/threads/long-range-load-development-at-100-yards.3814361/</a></p></blockquote><p></p>
[QUOTE="ShtrRdy, post: 1626840, member: 40852"] As I'm sure you're aware after digging around on the internet there are several proposed ways to do loading development. I use the Berger 210 VLD in my long range 300 Win Mag rifle powered by H1000. I didn't do much seating depth testing but rather settled on touching the lands with the bullet. The VLD bullets are known to be difficult to tune. So if this is the first time you're doing a load development I would recommend the following: 1. Use once or twice fired brass that has been fired in the rifle. 2. Figure out why you have 0.01" variation in length trim. 0.005" or less would be better. 3. Measure the run out on the fired brass. Less than 0.002" sounds good. 4. Find the Cartridge Overall Length, ( COAL ), for VLD bullet touching the lands. Use this to start. 5. I like to use the OCW type of method but I don't do the Round Robin sequence. If you want to try the Satterlee method give it a try. I haven't actually done it this way but I think it has merit based on my measuring velocity after doing the OCW. I don't think you need to be trimming neck thickness, unless that brass is really bad. Do you understand the concept of resizing the brass so that the shoulder is only pushed back a couple thousandths? This link was in a different thread. Just read the first post, not all the pages. [URL]http://forum.accurateshooter.com/threads/long-range-load-development-at-100-yards.3814361/[/URL] [/QUOTE]
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Q&A: 300 WM with 210 gr VLD Hunting Project
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