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Rifles, Reloading, Optics, Equipment
Reloading
Truing Quickload estimates to real world data
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<blockquote data-quote="MSURunner" data-source="post: 1932576" data-attributes="member: 102961"><p>I'm hoping someone here has established a quicker method than my guess and check to get stuff trued up to match the real world data.</p><p></p><p>First, measure/weigh everything and make the corrections.</p><p></p><p>Now let's say QL estimates a velocity of 2488 fps using 36.0 gn AR-Comp. Real world velocity was 2597 fps (+109 fps).</p><p>Again, QL estimates a velocity of 2377 fps using 34.0 gn AR-Comp. Real world velocity was 2510 fps (+133 fps).</p><p></p><p>If I bump up Initiation Pressure to match 36.0 velocity, I'd have to have a IP of 20K+ and it doesn't track well with the velocity back on the other end.</p><p></p><p>So then I reset the IP back to 3625 and tweak Ba Factor. Ba Factore needs to increase by almost 20% to get top velocity correct, but then again, doesn't track well on the other end. </p><p></p><p>So then Weighting Factor get adjusted, and again, they don't match up linearly... Then I fiddle with Bullet Weight/Case Capacity. It usually winds up being such a process to get it close across a whole spectrum without using one value that seems out of place otherwise. More importantly, it takes forever....</p><p></p><p>What do you guys that true your data do? What your process like?</p></blockquote><p></p>
[QUOTE="MSURunner, post: 1932576, member: 102961"] I'm hoping someone here has established a quicker method than my guess and check to get stuff trued up to match the real world data. First, measure/weigh everything and make the corrections. Now let's say QL estimates a velocity of 2488 fps using 36.0 gn AR-Comp. Real world velocity was 2597 fps (+109 fps). Again, QL estimates a velocity of 2377 fps using 34.0 gn AR-Comp. Real world velocity was 2510 fps (+133 fps). If I bump up Initiation Pressure to match 36.0 velocity, I'd have to have a IP of 20K+ and it doesn't track well with the velocity back on the other end. So then I reset the IP back to 3625 and tweak Ba Factor. Ba Factore needs to increase by almost 20% to get top velocity correct, but then again, doesn't track well on the other end. So then Weighting Factor get adjusted, and again, they don't match up linearly... Then I fiddle with Bullet Weight/Case Capacity. It usually winds up being such a process to get it close across a whole spectrum without using one value that seems out of place otherwise. More importantly, it takes forever.... What do you guys that true your data do? What your process like? [/QUOTE]
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Truing Quickload estimates to real world data
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