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Long Range Hunting & Shooting
6.5 284 vs 260 ai
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<blockquote data-quote="Greyfox" data-source="post: 1396133" data-attributes="member: 10291"><p>Like many, I'm excited about the introduction of the high BC heavies from Berger and Sierra. I've been running models based on the flow of information that is coming out on a regular basis. My current load in my 6.5x284 is a 142gr JLK VLD with a BC of .323(G7) driven at 3015 FPS. My 1100 yard dope at 4500'/45F is <u>24.5MOA, for 1800FPS/1000FPE</u>. The LR performance on medium game out past 1000 yards with this setup has proven to be very effective. </p><p>Modeling the 155gr Berger using current predictions of a .355BC and velocity of 2920FPS(current reports) with the same atmospherics listed above, the 1100 yard dope is <u>25.25MOA for 1800FPS/1100FP</u>. If these are accurate, a additional 100FP isn't significant enough making me question if the view is worth the climb. I'm hoping for a more meaningful outcome,but suspect the material payoff in performance with the heavies will come from the larger capacity 6.5 cases(ie.260 Nosler, 264WM)) where velocities can be driven considerably faster then is achievable with the 6.5x284/260Ack case capacities.</p></blockquote><p></p>
[QUOTE="Greyfox, post: 1396133, member: 10291"] Like many, I’m excited about the introduction of the high BC heavies from Berger and Sierra. I’ve been running models based on the flow of information that is coming out on a regular basis. My current load in my 6.5x284 is a 142gr JLK VLD with a BC of .323(G7) driven at 3015 FPS. My 1100 yard dope at 4500’/45F is [U]24.5MOA, for 1800FPS/1000FPE[/U]. The LR performance on medium game out past 1000 yards with this setup has proven to be very effective. Modeling the 155gr Berger using current predictions of a .355BC and velocity of 2920FPS(current reports) with the same atmospherics listed above, the 1100 yard dope is [U]25.25MOA for 1800FPS/1100FP[/U]. If these are accurate, a additional 100FP isn’t significant enough making me question if the view is worth the climb. I’m hoping for a more meaningful outcome,but suspect the material payoff in performance with the heavies will come from the larger capacity 6.5 cases(ie.260 Nosler, 264WM)) where velocities can be driven considerably faster then is achievable with the 6.5x284/260Ack case capacities. [/QUOTE]
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6.5 284 vs 260 ai
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