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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
7 mag reloading conundrum?
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<blockquote data-quote="rscott5028" data-source="post: 524418" data-attributes="member: 24624"><p>Muzzle blast can throw off the chrony. So, you might want to set it out a little farther if possible and in addition to the other cautions about changing sunlight. Some people go so far as to use an umbrella over the chrony to maintain consistency. </p><p> </p><p>Also, there's a big gap between your loads. try dropping down to .5 gr or smaller step size in that mystery range to see if/where it begins to fall off. </p><p> </p><p>Like others, I don't think the velocity dropped like that when you increased the powder. ...unless perhaps you had good neck tension with the earlier loads and then had poor neck tension with the latter loads. </p><p> </p><p>-- richard</p></blockquote><p></p>
[QUOTE="rscott5028, post: 524418, member: 24624"] Muzzle blast can throw off the chrony. So, you might want to set it out a little farther if possible and in addition to the other cautions about changing sunlight. Some people go so far as to use an umbrella over the chrony to maintain consistency. Also, there's a big gap between your loads. try dropping down to .5 gr or smaller step size in that mystery range to see if/where it begins to fall off. Like others, I don't think the velocity dropped like that when you increased the powder. ...unless perhaps you had good neck tension with the earlier loads and then had poor neck tension with the latter loads. -- richard [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
7 mag reloading conundrum?
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