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Rifles, Reloading, Optics, Equipment
Reloading
Appropriate velocity spread
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<blockquote data-quote="Natty Bumpo" data-source="post: 214829" data-attributes="member: 10106"><p>Picked up a chronograph recently and tried it out for the first time this morning. Was evaluating some loads with some new bullets in my .308 Win and checking a practice load I've been using in .223 rem. </p><p> </p><p>So if I'm looking for a load to reach out to 500 or 600 yards with, what's an acceptable velocity spread or standard deviation? And how many shots do you fire to evaluate a load?</p><p> </p><p>I was only firing 5 rounds per load. That not a lot, but I did have one load with a spread of only 12 feet per second (fps) and a standard deviation of 5.0. That seemed pretty good given other loads had spreads of 30-44 fps and higher standard deviations. But it's only 5 shots.</p><p> </p><p>My wife had asked me what I wanted for my birthday. I told her a chronograph and mentioned about what they cost. She knows nothing about rifles and shooting and told me to go ahead and get it myself. A few days later I told her I had gone ahead and ordered the Master Beta. She looked at me like I was some sort of pervert<img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite8" alt=":D" title="Big Grin :D" loading="lazy" data-shortname=":D" />! </p><p> </p><p>I know a lot of guys here prefer the CED Millennium; but, Barsness wrote highly of the Shooting Chrony models, so I decided to save a few bucks. Since I typically shoot in the early a.m., bright sunshine affecting readings didn't seem too big a concern.</p></blockquote><p></p>
[QUOTE="Natty Bumpo, post: 214829, member: 10106"] Picked up a chronograph recently and tried it out for the first time this morning. Was evaluating some loads with some new bullets in my .308 Win and checking a practice load I've been using in .223 rem. So if I'm looking for a load to reach out to 500 or 600 yards with, what's an acceptable velocity spread or standard deviation? And how many shots do you fire to evaluate a load? I was only firing 5 rounds per load. That not a lot, but I did have one load with a spread of only 12 feet per second (fps) and a standard deviation of 5.0. That seemed pretty good given other loads had spreads of 30-44 fps and higher standard deviations. But it's only 5 shots. My wife had asked me what I wanted for my birthday. I told her a chronograph and mentioned about what they cost. She knows nothing about rifles and shooting and told me to go ahead and get it myself. A few days later I told her I had gone ahead and ordered the Master Beta. She looked at me like I was some sort of pervert:D! I know a lot of guys here prefer the CED Millennium; but, Barsness wrote highly of the Shooting Chrony models, so I decided to save a few bucks. Since I typically shoot in the early a.m., bright sunshine affecting readings didn't seem too big a concern. [/QUOTE]
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Reloading
Appropriate velocity spread
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