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Rifles, Reloading, Optics, Equipment
Reloading
HELP WITH SATERLEE VELOCITY TEST
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<blockquote data-quote="milo-2" data-source="post: 1958281" data-attributes="member: 33622"><p>I do not think the OCW method and the "S" method are the same thing. Doesn't the OCW represent impacts in the same location regardless of velocity, therefore a range of velocities that remain constant. Where the S method is flat spots in velocity. which really only Hodgdon powders are candidates for using this method, I have never saw a VV, Norma, or Alliant powder plateau unless it is right at max efficiency of the platform and when it exits with more powder, you'd basically be into pressure spikes.</p><p>I shouldn't do this, but I think 25wssm is using an extremely modified S method, and making things work in his favor with a chrono as a integral tool in his process.</p><p>And I am one who doesn't buy into wez, probability of a hit, surely doesn't mean if my loads are tuned for 80% of the max distance I plan to shoot my rifle, I cannot admire any numbers produced. Just like 25, he is tuning his load for 1K benchrest the day before a match.</p><p>OCW, Ladder, and OBT can all be tied together in a decent load, trying to separate them and decipher which one is dominant in the triangle is where confusion sets in. I feel OBT is real, it is just impossible for 99.9% of guys to actually measure.</p><p>Group size and chrono numbers shrink in accordance with each other, and they have forever, but the tightest group holding waterline at distance doesn't necessarily have to have the tightest numbers.</p><p>Now there is a guy on SH saying to actually collect correct chrono data, 50 shot strings are needed as a sample size. Most of my barrels are shot out in 1500 rds, not for me. Plus, guys have been shooting tiny groups for decades at 1K not realizing that Science now plays in the game.</p></blockquote><p></p>
[QUOTE="milo-2, post: 1958281, member: 33622"] I do not think the OCW method and the "S" method are the same thing. Doesn't the OCW represent impacts in the same location regardless of velocity, therefore a range of velocities that remain constant. Where the S method is flat spots in velocity. which really only Hodgdon powders are candidates for using this method, I have never saw a VV, Norma, or Alliant powder plateau unless it is right at max efficiency of the platform and when it exits with more powder, you'd basically be into pressure spikes. I shouldn't do this, but I think 25wssm is using an extremely modified S method, and making things work in his favor with a chrono as a integral tool in his process. And I am one who doesn't buy into wez, probability of a hit, surely doesn't mean if my loads are tuned for 80% of the max distance I plan to shoot my rifle, I cannot admire any numbers produced. Just like 25, he is tuning his load for 1K benchrest the day before a match. OCW, Ladder, and OBT can all be tied together in a decent load, trying to separate them and decipher which one is dominant in the triangle is where confusion sets in. I feel OBT is real, it is just impossible for 99.9% of guys to actually measure. Group size and chrono numbers shrink in accordance with each other, and they have forever, but the tightest group holding waterline at distance doesn't necessarily have to have the tightest numbers. Now there is a guy on SH saying to actually collect correct chrono data, 50 shot strings are needed as a sample size. Most of my barrels are shot out in 1500 rds, not for me. Plus, guys have been shooting tiny groups for decades at 1K not realizing that Science now plays in the game. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
HELP WITH SATERLEE VELOCITY TEST
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