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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
What’s flatter 6.5PRC or 280ai??
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<blockquote data-quote="BrentM" data-source="post: 1802115" data-attributes="member: 61747"><p>Flatter is a combo of velocity and BC. The 6.5 is going to send a lighter bullet faster than a heavier 7mm. For example if you run a 135A tip in a 6.5 PRC with a BC in the 630 range and a 168 vld in the 620 range the PRC will win this comparison. You can easily run the 135 at 3200 in a 26" barrel. I am running 3100 in a 22". A 280AI with a 168 is going to be 2950-3000 same barrel length. I run a 168 in a 7mag at 3050. </p><p></p><p>So in the end the you are talking 2.7-2.8 moa at 600 or 17" given this example. Flatter is flatter, which is why I am running the 135 right now for wolves. Smaller target and less error if I'm not exact on distance. If they are moving they can cover 10 yards in just a few strides and ruin your day.</p></blockquote><p></p>
[QUOTE="BrentM, post: 1802115, member: 61747"] Flatter is a combo of velocity and BC. The 6.5 is going to send a lighter bullet faster than a heavier 7mm. For example if you run a 135A tip in a 6.5 PRC with a BC in the 630 range and a 168 vld in the 620 range the PRC will win this comparison. You can easily run the 135 at 3200 in a 26" barrel. I am running 3100 in a 22". A 280AI with a 168 is going to be 2950-3000 same barrel length. I run a 168 in a 7mag at 3050. So in the end the you are talking 2.7-2.8 moa at 600 or 17" given this example. Flatter is flatter, which is why I am running the 135 right now for wolves. Smaller target and less error if I'm not exact on distance. If they are moving they can cover 10 yards in just a few strides and ruin your day. [/QUOTE]
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What’s flatter 6.5PRC or 280ai??
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