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Rifles, Reloading, Optics, Equipment
Reloading
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<blockquote data-quote="heikki02003" data-source="post: 283625" data-attributes="member: 15200"><p>Put a little more simply, a "node" is where your rifle, bullet, and powder charge produces a nice little group while developing a load. To explain this would require a huge discussion on barrel harmonics that I won't get into. Typically, us as reloaders are concerned with two "nodes". You'll find one somewhere in the bottom half of your min/max book values, and another one typically somewhere around max book value. </p><p>The problem is that with some powder, bullet, barrel combinations the "node" (remember small group) you find in your load development will be right in the middle of your min/max values, and going up to you max has not produced another "node". That means that your next node will be above max pressure. When this happens its time to change powder. </p><p>A very intelligent man by the name of Dan Newberry has come up with very good way of finding your optimal charge weight (OCW). I highly, highly recommend reading every word of his website and using his method.</p><p>Here is the link: <a href="http://optimalchargeweight.embarqspace.com/" target="_blank">Dan Newberry's OCW Load Development System</a></p></blockquote><p></p>
[QUOTE="heikki02003, post: 283625, member: 15200"] Put a little more simply, a "node" is where your rifle, bullet, and powder charge produces a nice little group while developing a load. To explain this would require a huge discussion on barrel harmonics that I won't get into. Typically, us as reloaders are concerned with two "nodes". You'll find one somewhere in the bottom half of your min/max book values, and another one typically somewhere around max book value. The problem is that with some powder, bullet, barrel combinations the "node" (remember small group) you find in your load development will be right in the middle of your min/max values, and going up to you max has not produced another "node". That means that your next node will be above max pressure. When this happens its time to change powder. A very intelligent man by the name of Dan Newberry has come up with very good way of finding your optimal charge weight (OCW). I highly, highly recommend reading every word of his website and using his method. Here is the link: [URL="http://optimalchargeweight.embarqspace.com/"]Dan Newberry's OCW Load Development System[/URL] [/QUOTE]
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