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Rifles, Reloading, Optics, Equipment
Reloading
300win mag 215 berger help
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<blockquote data-quote="MagnumManiac" data-source="post: 1395998" data-attributes="member: 10755"><p>I'm also using the 215gr Berger Hybrid for F-Class Open.</p><p>I find that it likes a bit of jump, say .080" in my particular chamber. In fact, it is pretty stable and unaffected by seating depths ranging from .060"-.100".</p><p>The only issue in my rifle is that ES goes up as the bullet gets closer to the rifling, the reason is unknown to me, but this is typical with this barrel. It has 803 rounds down and still produces 3/8MoA.</p><p></p><p>Have you considered doing a .3gr ladder test?</p><p>Find your tightest group, then play with powder charge in .3gr increments for 2 loads above and below this level.</p><p>At 300yrds/metres shoot each weight at one aiming point. What you want to see is clusters grouping at the same level, loads outside of this are out of the node.</p><p>I then confirm the chosen load @ 600 metres, in my instance only, to be sure that the load is stable.</p><p>What this is doing is finding a node that is wide and unaffected by charge variation/seating depth sensitive/barometric conditions.</p><p>Your problem may be from a barometric condition rather than a temp condition.</p><p></p><p>I would also try seating further out than what you have it now.</p><p></p><p>Let us know how you get on.</p><p></p><p>Cheers.</p><p><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="MagnumManiac, post: 1395998, member: 10755"] I’m also using the 215gr Berger Hybrid for F-Class Open. I find that it likes a bit of jump, say .080” in my particular chamber. In fact, it is pretty stable and unaffected by seating depths ranging from .060”-.100”. The only issue in my rifle is that ES goes up as the bullet gets closer to the rifling, the reason is unknown to me, but this is typical with this barrel. It has 803 rounds down and still produces 3/8MoA. Have you considered doing a .3gr ladder test? Find your tightest group, then play with powder charge in .3gr increments for 2 loads above and below this level. At 300yrds/metres shoot each weight at one aiming point. What you want to see is clusters grouping at the same level, loads outside of this are out of the node. I then confirm the chosen load @ 600 metres, in my instance only, to be sure that the load is stable. What this is doing is finding a node that is wide and unaffected by charge variation/seating depth sensitive/barometric conditions. Your problem may be from a barometric condition rather than a temp condition. I would also try seating further out than what you have it now. Let us know how you get on. Cheers. :) [/QUOTE]
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300win mag 215 berger help
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