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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
338 bullet BC results from Snipers Hide
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<blockquote data-quote="Pdvdh" data-source="post: 596285" data-attributes="member: 4191"><p>This was why I stepped all the way out to 1000 yds when collecting downrange velocity to determine TOF BCs for bullets fired out of my rifles. I wanted to maximize the change in velocity between the muzzle and the downrange measuring point to minimize the uncertainty in measured velocities associated with chronograph collected velocities. I knew there was some amount of error inherent in the chronograph velocity data, and I wanted that error to be a small percentage of the total difference in velocity from the muzzle to 1000 yds downrange.</p><p></p><p>It makes it challenging to place the bullets over the skyscreens at 1000 yds though. Which is why I built a 1/2" AR500 skyscreen shield to protect my skyscreens from stray bullet impacts. I now shoot across 7 skyscreens (triplicate chronograph setup) so I'd lose all seven skyscreens with a single stray bullet.</p></blockquote><p></p>
[QUOTE="Pdvdh, post: 596285, member: 4191"] This was why I stepped all the way out to 1000 yds when collecting downrange velocity to determine TOF BCs for bullets fired out of my rifles. I wanted to maximize the change in velocity between the muzzle and the downrange measuring point to minimize the uncertainty in measured velocities associated with chronograph collected velocities. I knew there was some amount of error inherent in the chronograph velocity data, and I wanted that error to be a small percentage of the total difference in velocity from the muzzle to 1000 yds downrange. It makes it challenging to place the bullets over the skyscreens at 1000 yds though. Which is why I built a 1/2" AR500 skyscreen shield to protect my skyscreens from stray bullet impacts. I now shoot across 7 skyscreens (triplicate chronograph setup) so I'd lose all seven skyscreens with a single stray bullet. [/QUOTE]
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338 bullet BC results from Snipers Hide
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