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Rifles, Reloading, Optics, Equipment
Equipment Discussions
Chronograph accuracy
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<blockquote data-quote="Bearwalk" data-source="post: 437310" data-attributes="member: 24487"><p>I can grab a pic next time I'm up there. Basically, we have a heavy structure of horizontal beams fill with pea gravel over our 200 yd range. They are about 9' off the ground. They start out close together and then progressively get further apart. The idea is that the shooter can never see daylight with his muzzle, thus a bullet can't escape the range from an AD. At 20' feet out the beams are about 3' apart. I just throw some scrap plywood we have laying around on top of the structure to block direct sun. They great thing is I still get plenty of ambient light, just not direct sun.</p><p></p><p>On my CED M2, it doesn't matter since I use infra-red screens inside a foam box, or "coffin".</p><p></p><p>Side note: By using two chronos, I pretty much know if they're lyin' to me.</p><p></p><p></p><p>I hear what you're sayin' about no confidence in chronos. I had actually given up on them for a couple of years since I could never seem to get repeatable results that made sense. Finally, I started doing a lot of research on factors that can cause trouble with chronos. My "list" I posted above is the results of that research and a lot of trial and error.</p><p></p><p>I hate to sound repetitive, but once I could start relying on my chrono results, it was a "life changing" experience. LOL. Not only did I shorten my development process, but my handloading improved and so did my accuracy. You see, once I started believing the chrono, I quit blaming it for the crazy spreads I would sometimes get. Instead, I started examining how I could improve my handloading to produce steadier velocities. Now, the whole process is working the way it should with good test data now feeding into improving "manufacturing" which in turn results in better performance at the target.</p><p></p><p>Now, if I could just improve my trigger control....</p></blockquote><p></p>
[QUOTE="Bearwalk, post: 437310, member: 24487"] I can grab a pic next time I'm up there. Basically, we have a heavy structure of horizontal beams fill with pea gravel over our 200 yd range. They are about 9' off the ground. They start out close together and then progressively get further apart. The idea is that the shooter can never see daylight with his muzzle, thus a bullet can't escape the range from an AD. At 20' feet out the beams are about 3' apart. I just throw some scrap plywood we have laying around on top of the structure to block direct sun. They great thing is I still get plenty of ambient light, just not direct sun. On my CED M2, it doesn't matter since I use infra-red screens inside a foam box, or "coffin". Side note: By using two chronos, I pretty much know if they're lyin' to me. I hear what you're sayin' about no confidence in chronos. I had actually given up on them for a couple of years since I could never seem to get repeatable results that made sense. Finally, I started doing a lot of research on factors that can cause trouble with chronos. My "list" I posted above is the results of that research and a lot of trial and error. I hate to sound repetitive, but once I could start relying on my chrono results, it was a "life changing" experience. LOL. Not only did I shorten my development process, but my handloading improved and so did my accuracy. You see, once I started believing the chrono, I quit blaming it for the crazy spreads I would sometimes get. Instead, I started examining how I could improve my handloading to produce steadier velocities. Now, the whole process is working the way it should with good test data now feeding into improving "manufacturing" which in turn results in better performance at the target. Now, if I could just improve my trigger control.... [/QUOTE]
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