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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Long Range Hunting Rifle
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<blockquote data-quote="Kiwi Nate" data-source="post: 464988" data-attributes="member: 8533"><p>I think it would be helpful to back work the project. This will help give clearer perspective.</p><p></p><p>Start with the game body weights you intend to hunt. If 90% of your game will be around or over 90kg / 200lb, then a .30 cal would be the go. </p><p></p><p>If 90% of the game you intend to hunt will be under 90kg / 200lb, then a 7mm will get the job done with less recoil to the bedding platform, to the shooter, etc, etc.</p><p></p><p>Next is intended ranges of the game. </p><p></p><p>If you will be shooting out to 700 yards as a typical max range, you don't need a great deal of power. Retained velocities are the what you need to study, as a means of gaining an insight as to how much expansion or fragmentation you can expect. Its nice to have 1800fps at the target however projectiles like the Amax work well down to 1400fps.</p><p></p><p>If you are going to be doing a lot of work at the 1000 yard mark or there abouts, its best to have a potent magnum for sure- bullet expansion and wind drift are my concerns out long, not bullet drop.</p><p></p><p>Back working a project can make things a lot easier and in some instances, allows for the consideration of cartridges that might otherwise have been overlooked. As body weights get lighter, the 6.5's come into their own and they are very much high recoilers combined with high BC's. The 140 grain Amax is a spectacular killer of light bodied animals. When clients come to me, wishing to a commence a build or buy, this is how I usually go about helping them.</p></blockquote><p></p>
[QUOTE="Kiwi Nate, post: 464988, member: 8533"] I think it would be helpful to back work the project. This will help give clearer perspective. Start with the game body weights you intend to hunt. If 90% of your game will be around or over 90kg / 200lb, then a .30 cal would be the go. If 90% of the game you intend to hunt will be under 90kg / 200lb, then a 7mm will get the job done with less recoil to the bedding platform, to the shooter, etc, etc. Next is intended ranges of the game. If you will be shooting out to 700 yards as a typical max range, you don't need a great deal of power. Retained velocities are the what you need to study, as a means of gaining an insight as to how much expansion or fragmentation you can expect. Its nice to have 1800fps at the target however projectiles like the Amax work well down to 1400fps. If you are going to be doing a lot of work at the 1000 yard mark or there abouts, its best to have a potent magnum for sure- bullet expansion and wind drift are my concerns out long, not bullet drop. Back working a project can make things a lot easier and in some instances, allows for the consideration of cartridges that might otherwise have been overlooked. As body weights get lighter, the 6.5's come into their own and they are very much high recoilers combined with high BC's. The 140 grain Amax is a spectacular killer of light bodied animals. When clients come to me, wishing to a commence a build or buy, this is how I usually go about helping them. [/QUOTE]
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Long Range Hunting Rifle
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