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Rifles, Reloading, Optics, Equipment
Reloading
Quick Load advice
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<blockquote data-quote="abstewart66" data-source="post: 2613476" data-attributes="member: 44549"><p>I use both QL and OBT as well as the OCW 3% rule. QL is as good as the inputs, but certain powders (N140, IMR3031) require adjusting Ba (sometimes quite a bit) to true the velocity. I also look closely at whether or not Pmax and Z1 are close. I have found that for most of my best loads, Pmax and Z1 are very close if not identical. Many times QL and OBT chart nodes are very close, although I will say that there are accuracy nodes that are in between the nodes on the OBT chart. So, once I find a node, I then use the 3% rule to find the next node area to test. I will say that lower charges seem to require larger Ba adjustments in order to true them based upon velocity. As one would imagine, burn rate seems to change with load density. That is what I do and it generally works. It really helps me minimize waste of components. That being said I would never make a large jump in powder charge simply based upon what QL tells me as it is nothing more than a predictive modeling program and it is more accurate with some powders and charges than with others. I hope that helps..</p></blockquote><p></p>
[QUOTE="abstewart66, post: 2613476, member: 44549"] I use both QL and OBT as well as the OCW 3% rule. QL is as good as the inputs, but certain powders (N140, IMR3031) require adjusting Ba (sometimes quite a bit) to true the velocity. I also look closely at whether or not Pmax and Z1 are close. I have found that for most of my best loads, Pmax and Z1 are very close if not identical. Many times QL and OBT chart nodes are very close, although I will say that there are accuracy nodes that are in between the nodes on the OBT chart. So, once I find a node, I then use the 3% rule to find the next node area to test. I will say that lower charges seem to require larger Ba adjustments in order to true them based upon velocity. As one would imagine, burn rate seems to change with load density. That is what I do and it generally works. It really helps me minimize waste of components. That being said I would never make a large jump in powder charge simply based upon what QL tells me as it is nothing more than a predictive modeling program and it is more accurate with some powders and charges than with others. I hope that helps.. [/QUOTE]
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Quick Load advice
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