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Long range HUNTING cartridges limitations
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<blockquote data-quote="MudRunner2005" data-source="post: 1378009" data-attributes="member: 12995"><p>Oh, so now we're shooting 2,000+ yards with the Creedmoor...This just gets better and better.</p><p></p><p>Also, ballistics on an honest dope chart pushing a .691 G1 BC 215 Hybrid at 2,500 FPS from a 24" barrel, vs. a .697 G1 BC 147 ELD-M at 2,695 (Hornady factory Match ammo velocity from a 24" barrel) is not exactly going make the 6.5 braggedly better at long range. The charts are not that far off, like I stated previously.</p><p></p><p>Here's my calculations that I come up with... 100 yard zero, 2000 yard max. 10 MPH 90º wind value.</p><p></p><p><strong><em><u>.308 Win - 215 Berger Hybrid @ 2,500 FPS MV.</u></em></strong></p><p></p><p>100 - 2,380 FPS / Drop - 0.0" / Drift - 0.6"</p><p>1,000 - 1,461 FPS / Drop - 362.5" / Drift - 66.4"</p><p>2,000 - 961 FPS / Drop - 2,479.5" / Drift - 319.3"</p><p></p><p><strong><em><u>6.5 Creedmoor - 147 ELD-M @ 2,695 FPS MV.</u></em></strong></p><p></p><p>100 - 2,567 FPS / Drop - 0.0" / Drift - 0.5"</p><p>1,000 - 1,577 FPS / Drop - 308.8" / Drift - 61.1"</p><p>2,000 - 989 FPS / Drop - 2,154.0" / Drift - 305.3"</p><p></p><p>This means that at 1,000 yards, there is only a 53.7" drop difference, and 5.3" wind drift difference. For 1,000 yard shooting, that's fairly close considering what you're comparing, and the initial velocity difference.</p><p></p><p>You're right about one thing, the .308 Win is not an ELR cartridge, I never said it was. But the little 6.5 Creedmoor is also NOT an ELR cartridge. Look at the chart, the numbers don't lie. When you step up to things with 70+ grain powder charges and 7mm and larger (195+ grain) bullets, being pushed over 3,000 FPS MV, then you are stepping into the realm of ELR cartridges.</p></blockquote><p></p>
[QUOTE="MudRunner2005, post: 1378009, member: 12995"] Oh, so now we're shooting 2,000+ yards with the Creedmoor...This just gets better and better. Also, ballistics on an honest dope chart pushing a .691 G1 BC 215 Hybrid at 2,500 FPS from a 24" barrel, vs. a .697 G1 BC 147 ELD-M at 2,695 (Hornady factory Match ammo velocity from a 24" barrel) is not exactly going make the 6.5 braggedly better at long range. The charts are not that far off, like I stated previously. Here's my calculations that I come up with... 100 yard zero, 2000 yard max. 10 MPH 90º wind value. [B][I][U].308 Win - 215 Berger Hybrid @ 2,500 FPS MV.[/U][/I][/B] 100 - 2,380 FPS / Drop - 0.0" / Drift - 0.6" 1,000 - 1,461 FPS / Drop - 362.5" / Drift - 66.4" 2,000 - 961 FPS / Drop - 2,479.5" / Drift - 319.3" [B][I][U]6.5 Creedmoor - 147 ELD-M @ 2,695 FPS MV.[/U][/I][/B] 100 - 2,567 FPS / Drop - 0.0" / Drift - 0.5" 1,000 - 1,577 FPS / Drop - 308.8" / Drift - 61.1" 2,000 - 989 FPS / Drop - 2,154.0" / Drift - 305.3" This means that at 1,000 yards, there is only a 53.7" drop difference, and 5.3" wind drift difference. For 1,000 yard shooting, that's fairly close considering what you're comparing, and the initial velocity difference. You're right about one thing, the .308 Win is not an ELR cartridge, I never said it was. But the little 6.5 Creedmoor is also NOT an ELR cartridge. Look at the chart, the numbers don't lie. When you step up to things with 70+ grain powder charges and 7mm and larger (195+ grain) bullets, being pushed over 3,000 FPS MV, then you are stepping into the realm of ELR cartridges. [/QUOTE]
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