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Rifles, Reloading, Optics, Equipment
Reloading
Newbie question.
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<blockquote data-quote="freelunch" data-source="post: 325302" data-attributes="member: 14655"><p>Chief1942,</p><p> I usually select an expected seating depth and hold the seating depth constant, then I do a ladder test to find the accuracy nodes. After I find the accuracy nodes, then I experiment with seating depth to optimize accuracy.</p><p></p><p>However, you can shortcut that process by getting a known good accurate load and vary the seating depth according to Berger Bullets' guidelines (a sticky at the top). Reloader's Nest has accuracy loads here for the 168gr bullet in 7 RemMag...</p><p></p><p><a href="http://www.reloadersnest.com/query_bw.asp?CaliberID=48&BulletWeight=168" target="_blank">14 loads available in 7mm Remington Magnum with bullet weight equal 168</a></p><p></p><p>For example, one load there using Reloder 19, 63.1 gr gave a .218 group at 100 yards. If you had Reloder 19 you could use that load and follow Berger's guidelines to determine best jump from Ogive to Lands for accuracy. Once you had that, then if you had another powder you could hold that seating depth constant and do a ladder test to find accuracy nodes for that powder.</p></blockquote><p></p>
[QUOTE="freelunch, post: 325302, member: 14655"] Chief1942, I usually select an expected seating depth and hold the seating depth constant, then I do a ladder test to find the accuracy nodes. After I find the accuracy nodes, then I experiment with seating depth to optimize accuracy. However, you can shortcut that process by getting a known good accurate load and vary the seating depth according to Berger Bullets' guidelines (a sticky at the top). Reloader's Nest has accuracy loads here for the 168gr bullet in 7 RemMag... [url=http://www.reloadersnest.com/query_bw.asp?CaliberID=48&BulletWeight=168]14 loads available in 7mm Remington Magnum with bullet weight equal 168[/url] For example, one load there using Reloder 19, 63.1 gr gave a .218 group at 100 yards. If you had Reloder 19 you could use that load and follow Berger's guidelines to determine best jump from Ogive to Lands for accuracy. Once you had that, then if you had another powder you could hold that seating depth constant and do a ladder test to find accuracy nodes for that powder. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
Newbie question.
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