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Rifles, Reloading, Optics, Equipment
Reloading
Quikload start pressure
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<blockquote data-quote="Mikecr" data-source="post: 298822" data-attributes="member: 1521"><p>The beauty in QL is that it CAN be calibrated, which cannot be done with load manuals. </p><p>The downside of QL is that it MUST be calibrated. So it's no more accurate than your inputs.</p><p></p><p>With tool tips enabled, and starting pressure selected you see a note about adding 7200psi for bullets touching the lands. This is a starting point. Load a few, shoot over a chrono, then calibrate QL. </p><p>Starting pressure is one adjustment to dial in the software.</p><p>There is also, weighting factor, bore area, case capacity, case/powder fill, seating area, powder temp, and powder lot/file adjustments.</p><p>None of which is accounted for in manuals...</p><p></p><p>Once it's calibrated you store that load, for that gun, and future predictions will be amazingly close provided you change only one or two things at a time.</p><p></p><p>To directly answer your question though, there is no way to exactly PREDICT your pressure curve(Beginning, middle, or end). No rules of thumb can apply with any precision, because no two barrels are the same.</p></blockquote><p></p>
[QUOTE="Mikecr, post: 298822, member: 1521"] The beauty in QL is that it CAN be calibrated, which cannot be done with load manuals. The downside of QL is that it MUST be calibrated. So it's no more accurate than your inputs. With tool tips enabled, and starting pressure selected you see a note about adding 7200psi for bullets touching the lands. This is a starting point. Load a few, shoot over a chrono, then calibrate QL. Starting pressure is one adjustment to dial in the software. There is also, weighting factor, bore area, case capacity, case/powder fill, seating area, powder temp, and powder lot/file adjustments. None of which is accounted for in manuals... Once it's calibrated you store that load, for that gun, and future predictions will be amazingly close provided you change only one or two things at a time. To directly answer your question though, there is no way to exactly PREDICT your pressure curve(Beginning, middle, or end). No rules of thumb can apply with any precision, because no two barrels are the same. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
Quikload start pressure
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