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Rifles, Reloading, Optics, Equipment
Reloading
ES SD issue
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<blockquote data-quote="J E Custom" data-source="post: 1915350" data-attributes="member: 2736"><p>While working up loads I first start at 100 yards because the chronograph doesn't care what distance it is and at the same time I get an idea what the rifle likes without the shooter error. After finding the best SD's, I then start shooting at progressively longer and longer distances for changes in bullets and seating depths to get the best accuracy.</p><p></p><p>This sounds like a long process, but it has cut my load development time and components in half by solving one problem at a time. I also start load testing during break in and fire forming to get a general idea what the rifle likes, knowing your rifle is a great advantage and break in is very important to me for this reason.</p><p></p><p>Not to long ago I started chronagraphing during break-in and this has also helped to determine when the barrel is broken in and how it responds to fouling in hunting situations. The better you do the brake in, the sooner the barrel will settle down. I have tried other break in procedures and found that they only prolonged the change in velocity problem and the shoot one and clean method worked best if chronograph during break in until it settled down. </p><p></p><p>Now, after break in I find that the average velocity stays the same as average velocities at the completion of the break in. Only a change in components (Powder and/or primer lots) has made a difference. Looking back at many of my records, it appears that barrel contour has lots to do with the number of shots it takes to get a flyer, so heat may be a major culprit if everything stays the same.</p><p></p><p>Just an opinion and observation</p><p></p><p>J E CUSTOM</p></blockquote><p></p>
[QUOTE="J E Custom, post: 1915350, member: 2736"] While working up loads I first start at 100 yards because the chronograph doesn't care what distance it is and at the same time I get an idea what the rifle likes without the shooter error. After finding the best SD's, I then start shooting at progressively longer and longer distances for changes in bullets and seating depths to get the best accuracy. This sounds like a long process, but it has cut my load development time and components in half by solving one problem at a time. I also start load testing during break in and fire forming to get a general idea what the rifle likes, knowing your rifle is a great advantage and break in is very important to me for this reason. Not to long ago I started chronagraphing during break-in and this has also helped to determine when the barrel is broken in and how it responds to fouling in hunting situations. The better you do the brake in, the sooner the barrel will settle down. I have tried other break in procedures and found that they only prolonged the change in velocity problem and the shoot one and clean method worked best if chronograph during break in until it settled down. Now, after break in I find that the average velocity stays the same as average velocities at the completion of the break in. Only a change in components (Powder and/or primer lots) has made a difference. Looking back at many of my records, it appears that barrel contour has lots to do with the number of shots it takes to get a flyer, so heat may be a major culprit if everything stays the same. Just an opinion and observation J E CUSTOM [/QUOTE]
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