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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Need advice on testing during load development
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<blockquote data-quote="Jesse09" data-source="post: 1109330" data-attributes="member: 88547"><p>Even though this thread has generated almost no interest, I thought I'd finish it with a report on this morning's shooting.</p><p></p><p>The temperature was a steady 75*F; the humidity was 100% with a slight drizzle (causing my glasses to maintain a constant fog), and I was shooting from a portable bench that mirrored each heartbeat on my reticle. The good news was that there was no measurable wind.</p><p></p><p>I first shot at 100 yards to set point of impact and to observe how many shots from a cleaned barrel were required before the groups settled. I found that the first three shots were sub-moa (.600"), indicating that this barrel needs no foulers before hunting.</p><p></p><p>After making a single vertical adjustment (compensating for the absence of the MagnetoSpeed chrony I had used during load development) I fired three shots at 300 yards, cooling the rifle in my cooler for five minutes between shots. That three-shot 300 yard group measured .946".</p><p></p><p>I then worked back through 250, 200 and 150 yards, confirming a maximum plus or minus 1 MOA over the entire range to 300 yards.</p><p></p><p>Jesse</p></blockquote><p></p>
[QUOTE="Jesse09, post: 1109330, member: 88547"] Even though this thread has generated almost no interest, I thought I'd finish it with a report on this morning's shooting. The temperature was a steady 75*F; the humidity was 100% with a slight drizzle (causing my glasses to maintain a constant fog), and I was shooting from a portable bench that mirrored each heartbeat on my reticle. The good news was that there was no measurable wind. I first shot at 100 yards to set point of impact and to observe how many shots from a cleaned barrel were required before the groups settled. I found that the first three shots were sub-moa (.600"), indicating that this barrel needs no foulers before hunting. After making a single vertical adjustment (compensating for the absence of the MagnetoSpeed chrony I had used during load development) I fired three shots at 300 yards, cooling the rifle in my cooler for five minutes between shots. That three-shot 300 yard group measured .946". I then worked back through 250, 200 and 150 yards, confirming a maximum plus or minus 1 MOA over the entire range to 300 yards. Jesse [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Need advice on testing during load development
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