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Rifles, Reloading, Optics, Equipment
Reloading
Chrono question
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<blockquote data-quote="Gunpoor" data-source="post: 1167187" data-attributes="member: 8358"><p>Was the barrel cool when you fired the first round? If it was then you have your bullet speed. Is it enough to figure standard deviation? Probably not. I have run many rounds of the same load over a chronograph and they really don't change much unless something in the equation changed. I had a Remington model 700 Sendero chambered in 338 UltraMag and the load I shot most in it was a 250 grain bullet over 89 grains of H4831SC and every single time I shot it over the chrono it registered 2860 ft/sec with no variance. I probably ran 15-20 rounds of this over the chrono and this is the only rifle, pistol, or load that was that consistent, to the point of being spooky.</p></blockquote><p></p>
[QUOTE="Gunpoor, post: 1167187, member: 8358"] Was the barrel cool when you fired the first round? If it was then you have your bullet speed. Is it enough to figure standard deviation? Probably not. I have run many rounds of the same load over a chronograph and they really don't change much unless something in the equation changed. I had a Remington model 700 Sendero chambered in 338 UltraMag and the load I shot most in it was a 250 grain bullet over 89 grains of H4831SC and every single time I shot it over the chrono it registered 2860 ft/sec with no variance. I probably ran 15-20 rounds of this over the chrono and this is the only rifle, pistol, or load that was that consistent, to the point of being spooky. [/QUOTE]
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Chrono question
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