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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Can you trust advertised ballistics coefficients? Mostly...but not always...
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<blockquote data-quote="entoptics" data-source="post: 2873194" data-attributes="member: 104268"><p>I've fired dozens of ELDX and ELDM on target while recording with LabRadar. As my data suggests, those bullets land pretty dang close to where the <em>manufacturer's </em>B.C. predicts they should at longer range. On Sunday, I zeroed the 225 ELDM at 184 yards, then plugged my calculated B.C. into Ballistic, and fired 5 rounds at 625 yards. The center of the 3/4 MOA group was less than 1/4 MOA off vertically. That's better than I can shoot, so take that with a grain of salt.</p><p></p><p>The reason I started routinely doing the calculations during load development in the first place, was because some bullets did not land even close to where the manufacturers claimed they would (hint: the problem bullets are in the data table and aren't Berger, Hornady, or Sierra)...</p></blockquote><p></p>
[QUOTE="entoptics, post: 2873194, member: 104268"] I've fired dozens of ELDX and ELDM on target while recording with LabRadar. As my data suggests, those bullets land pretty dang close to where the [I]manufacturer's [/I]B.C. predicts they should at longer range. On Sunday, I zeroed the 225 ELDM at 184 yards, then plugged my calculated B.C. into Ballistic, and fired 5 rounds at 625 yards. The center of the 3/4 MOA group was less than 1/4 MOA off vertically. That's better than I can shoot, so take that with a grain of salt. The reason I started routinely doing the calculations during load development in the first place, was because some bullets did not land even close to where the manufacturers claimed they would (hint: the problem bullets are in the data table and aren't Berger, Hornady, or Sierra)... [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Can you trust advertised ballistics coefficients? Mostly...but not always...
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