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Rifles, Reloading, Optics, Equipment
Reloading
Question about a load development method ....
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<blockquote data-quote="MagnumManiac" data-source="post: 2297091" data-attributes="member: 10755"><p>A ladder test only tells you a flat spot exists, or in other words a node where different powder charges shoot to the same POI.</p><p>If I took that info, loaded 100 rounds and fired 10 10 shot groups, how would I know that that 'velocity window' was the most precise without validating group size?</p><p>Everyone who believe that a low ES load is the most accurate is fooling themselves.</p><p>I have a short coarse load that has a 100fps ES, yet it will shoot to 100y into .1's.</p><p>I also do seating depth tests first with a middle load, because the seating depth does not change once found regardless of powder/primer combo. I follow exactly what Ryan does and have been doing so long before he started doing videos on the subject.</p><p>I have not shot a ladder in a long time, I use the OCW method and shoot groups, validation is done with 10 shot groups at 600m on several occasions, then overlapped to see actual group size.</p><p>One 3 or 5 shot group on one day is not a good way of determining aggregate and you are fooling yourself if you think that is validation on the precision of your load.</p><p>I don't care what anyone thinks, but I know that atmospheric conditions change a load over a weekend or sometimes even in one day. Have seen it too many times and it has nothing to do with temp sensitivity of the powder.</p><p></p><p>Cheers.</p></blockquote><p></p>
[QUOTE="MagnumManiac, post: 2297091, member: 10755"] A ladder test only tells you a flat spot exists, or in other words a node where different powder charges shoot to the same POI. If I took that info, loaded 100 rounds and fired 10 10 shot groups, how would I know that that ‘velocity window’ was the most precise without validating group size? Everyone who believe that a low ES load is the most accurate is fooling themselves. I have a short coarse load that has a 100fps ES, yet it will shoot to 100y into .1’s. I also do seating depth tests first with a middle load, because the seating depth does not change once found regardless of powder/primer combo. I follow exactly what Ryan does and have been doing so long before he started doing videos on the subject. I have not shot a ladder in a long time, I use the OCW method and shoot groups, validation is done with 10 shot groups at 600m on several occasions, then overlapped to see actual group size. One 3 or 5 shot group on one day is not a good way of determining aggregate and you are fooling yourself if you think that is validation on the precision of your load. I don’t care what anyone thinks, but I know that atmospheric conditions change a load over a weekend or sometimes even in one day. Have seen it too many times and it has nothing to do with temp sensitivity of the powder. Cheers. [/QUOTE]
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Question about a load development method ....
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