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Rifles, Reloading, Optics, Equipment
Reloading
What load development is best for factory rifles?
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<blockquote data-quote="3degreesbelow0" data-source="post: 437360" data-attributes="member: 27718"><p>.243yote, the purpose of the ladder test is to save components and money, you are trying to determine your barrels harmonic sweet spot or node, the barrel oscillates in a figure 8 the sweet spot would be the barrel being at the center of the 8.</p><p> </p><p>For the Load your developing you load one round for each powder charge from minimum to maximum, you fire them at 300 yards if you can or 200 if that is all that is available the farther away the better because it will amplify the barrels harmonics. You fire them one at a time at the same target, recording the location of each hit, this is important you need to know what powder charge is for each bullet hole. </p><p> </p><p>you should have a pattern not a group, in the pattern there should be a couple of rounds that are very close to each other clustered, You then take what those powder charges that are close to each other and load 3 rounds for those weights, shooting for groups at 100 yards like you would for common sight-in. Take the best group of those and adjust +/- 0.2gr in small cases or +/- 0.5grs in large capacity cases shooting 3 round groups for those. That should develope the best potential load for your gun in that bullet/powder combination. </p><p> </p><p>The advantage is you only shoot 3 shot groups on the powder charge that your rifle harmonics are most consistent with, instead of every powder charge as you are working up.</p></blockquote><p></p>
[QUOTE="3degreesbelow0, post: 437360, member: 27718"] .243yote, the purpose of the ladder test is to save components and money, you are trying to determine your barrels harmonic sweet spot or node, the barrel oscillates in a figure 8 the sweet spot would be the barrel being at the center of the 8. For the Load your developing you load one round for each powder charge from minimum to maximum, you fire them at 300 yards if you can or 200 if that is all that is available the farther away the better because it will amplify the barrels harmonics. You fire them one at a time at the same target, recording the location of each hit, this is important you need to know what powder charge is for each bullet hole. you should have a pattern not a group, in the pattern there should be a couple of rounds that are very close to each other clustered, You then take what those powder charges that are close to each other and load 3 rounds for those weights, shooting for groups at 100 yards like you would for common sight-in. Take the best group of those and adjust +/- 0.2gr in small cases or +/- 0.5grs in large capacity cases shooting 3 round groups for those. That should develope the best potential load for your gun in that bullet/powder combination. The advantage is you only shoot 3 shot groups on the powder charge that your rifle harmonics are most consistent with, instead of every powder charge as you are working up. [/QUOTE]
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What load development is best for factory rifles?
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