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Hunting
Long Range Hunting & Shooting
Which rifle route for long range?
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<blockquote data-quote="mnoland30" data-source="post: 1918680" data-attributes="member: 29323"><p>Thinking about recoil and penetration, the 6.5 with 140 gr. bullet has a sectional density (SD) of .287. It is well known for great penetration. In Scandinavia they use it for moose. To get that same SD in 30 caliber takes a 180 gr. bulelt, and in 7mm, a 160 gr. There is a huge difference in recoil between 140 gr. and 180 gr. Think about ballistic coefficient also. You can dial in distance, but wind is tougher. And the higher BC makes a big difference at long range. I settled on 7mm back in the day, because they had the highest BC of any bullet (in reasonable weights). Now, Berger makes 156 gr. 6.5s @.679,195 gr. 7mm @ .755, and 245 gr. .30 @ .807. For me to shoot a 245 gr. bullet well would require a muzzle brake. If I were choosing today, I might choose the 6.5, or I might still pick the 7mm.</p></blockquote><p></p>
[QUOTE="mnoland30, post: 1918680, member: 29323"] Thinking about recoil and penetration, the 6.5 with 140 gr. bullet has a sectional density (SD) of .287. It is well known for great penetration. In Scandinavia they use it for moose. To get that same SD in 30 caliber takes a 180 gr. bulelt, and in 7mm, a 160 gr. There is a huge difference in recoil between 140 gr. and 180 gr. Think about ballistic coefficient also. You can dial in distance, but wind is tougher. And the higher BC makes a big difference at long range. I settled on 7mm back in the day, because they had the highest BC of any bullet (in reasonable weights). Now, Berger makes 156 gr. 6.5s @.679,195 gr. 7mm @ .755, and 245 gr. .30 @ .807. For me to shoot a 245 gr. bullet well would require a muzzle brake. If I were choosing today, I might choose the 6.5, or I might still pick the 7mm. [/QUOTE]
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Which rifle route for long range?
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