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Rifles, Reloading, Optics, Equipment
Reloading
ladder test? does it work
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<blockquote data-quote="grit" data-source="post: 146568" data-attributes="member: 4112"><p>Hi GG,</p><p> When I first started shooting long range (2 years I believe) I put together the equiptment I thought necessary. The next step was to develop a load. I came on here and ran searches on "load development". Then I asked several questions. Seemed the two reponses I got were ladder test and OCW. I chose to try the ladder. </p><p> I have had good success finding loads that shoot well at 100 yards. I also run a test group or two at 500. Typically that's been the extent of my load development. I would then shoot these loads over a chrono for the sake of having mv's for drop charts. </p><p> Initially I was excited to score a hit at 1k. Now, I occassionally experience a shot missing high or low I think should have scored. I am very happy with the progress I have made. I think it may be time to further refine my loads. Start checking for es/sd.</p><p> It sounds like there are two factors contributing to an accurate long range load. One being a node generally believed to be based on barrel harmonics. The other factor being a low es/sd node. Based on ??? Load density, concentricity, uniformity of brass, seating depth....???</p><p> Further, it sounds like you belive the ladder method has the ability to point out harmonic nodes but not es/sd nodes?? </p><p></p><p>It's late, I'm tired. I fear I'm rambling. So, I'll get to the point. I respect your opinion and would be grateful if you would share some of your load development method. </p><p></p><p>Necessary equiptment: chrono Mine is a Chrony, Alpha. 95.5% accurate according to specs. Is this accurate enough (15fps at 3000fps)? If not, which one?</p><p>wind flags?</p><p></p><p>Important factors: brass prep, seating depth, load density, burn rate/barrel length ??</p><p></p><p>You look for sd nodes coinciding with good groups?</p><p></p><p>I'm sure I'll come up with more after a few hours sleep. Thanks.</p></blockquote><p></p>
[QUOTE="grit, post: 146568, member: 4112"] Hi GG, When I first started shooting long range (2 years I believe) I put together the equiptment I thought necessary. The next step was to develop a load. I came on here and ran searches on "load development". Then I asked several questions. Seemed the two reponses I got were ladder test and OCW. I chose to try the ladder. I have had good success finding loads that shoot well at 100 yards. I also run a test group or two at 500. Typically that's been the extent of my load development. I would then shoot these loads over a chrono for the sake of having mv's for drop charts. Initially I was excited to score a hit at 1k. Now, I occassionally experience a shot missing high or low I think should have scored. I am very happy with the progress I have made. I think it may be time to further refine my loads. Start checking for es/sd. It sounds like there are two factors contributing to an accurate long range load. One being a node generally believed to be based on barrel harmonics. The other factor being a low es/sd node. Based on ??? Load density, concentricity, uniformity of brass, seating depth....??? Further, it sounds like you belive the ladder method has the ability to point out harmonic nodes but not es/sd nodes?? It's late, I'm tired. I fear I'm rambling. So, I'll get to the point. I respect your opinion and would be grateful if you would share some of your load development method. Necessary equiptment: chrono Mine is a Chrony, Alpha. 95.5% accurate according to specs. Is this accurate enough (15fps at 3000fps)? If not, which one? wind flags? Important factors: brass prep, seating depth, load density, burn rate/barrel length ?? You look for sd nodes coinciding with good groups? I'm sure I'll come up with more after a few hours sleep. Thanks. [/QUOTE]
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ladder test? does it work
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