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Rifles, Reloading, Optics, Equipment
Reloading
Seating Depth Increments?
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<blockquote data-quote="Pdyson" data-source="post: 3102557" data-attributes="member: 74061"><p>I tried the the Berger method and found it lacking. Top bench rest and F-class shooters will tell you a seating depth node is only .006 wide. You may luck into a good node, but if you make big jumps you'll be skipping over good nodes. I shoot mostly heavy for caliber, high BC bullets in long range competition. They are very long and I want to make sure I maximize powder space while keeping my bullet away from the dreaded donut. I start .020 off the lands unless that won't fit in the magazine. I move back in .006 increments, even if I miss the first node window, the next depth will hit one. Once I find the window I move .003 above and below looking to find both ends of the window and shoot confirmation groups at the long end of the window. As the throat wears, it will stay in tune longer. I rarely have to shoot more than 4 or 5 depths before I find a good node. If I can't get there, I'll change powders or even switch to a different bullet. It works so well for my competition loads, I follow the same method with my deer and varmint loads.</p></blockquote><p></p>
[QUOTE="Pdyson, post: 3102557, member: 74061"] I tried the the Berger method and found it lacking. Top bench rest and F-class shooters will tell you a seating depth node is only .006 wide. You may luck into a good node, but if you make big jumps you’ll be skipping over good nodes. I shoot mostly heavy for caliber, high BC bullets in long range competition. They are very long and I want to make sure I maximize powder space while keeping my bullet away from the dreaded donut. I start .020 off the lands unless that won’t fit in the magazine. I move back in .006 increments, even if I miss the first node window, the next depth will hit one. Once I find the window I move .003 above and below looking to find both ends of the window and shoot confirmation groups at the long end of the window. As the throat wears, it will stay in tune longer. I rarely have to shoot more than 4 or 5 depths before I find a good node. If I can’t get there, I’ll change powders or even switch to a different bullet. It works so well for my competition loads, I follow the same method with my deer and varmint loads. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
Seating Depth Increments?
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