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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
.280 or 6.5x284 for elk
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<blockquote data-quote="ducky" data-source="post: 1935704" data-attributes="member: 94420"><p>First off either rifle will work fine, and I hate energy numbers. I've killed elk with a muzzle loader, and most of what I shot didn't generate 1,200 lbs-ft at the muzzle of energy. I still hammered elk with ease. You need enough to penetrate the vitals and then you'll have a dead elk.</p><p></p><p>I try to use speed as a good indicator as to the max range of a cartridge for hunting. Most modern bullets work well down to 1,800 fps, so that's kind of where I work and why it doesn't matter what you choose. If you fall below 1,800 fps I find bullets will still kill at lower velocities, but they don't mushroom very well or create as much trauma in most cases. So it'll usually take more rounds on target or more tracking to recover your animal.</p><p></p><p>I also believe twist rates help with bullet performance. I think the faster you spin a bullet, the better it expands on impact. So when I build a rifle I tend to use as fast of a twist as possible.</p><p></p><p></p><p></p><p>I believe this to be a myth for the pumps, as Remington chambered the very same 760 rifles in .270 Win (1952) six years before they did the .280 (1958). The .270 was never offered in a semi-auto 740 or 742, it wasn't until 1981 the .270 was offered in the 7400 series of semi auto rifles. However, the 740 was chambered in .244/6mm Rem and .308 with a 65K and 62K PSI operating pressures.</p><p></p><p>Best advice I ever got with my first .280 was from a buddy who had one. He said "Use .270 Win load data in your rifle", I did, and I got very similar performance to the .270 Win. If I still had the .280 Rem, I'd still be using .270 Win load data for the 140-160 grain bullets.</p></blockquote><p></p>
[QUOTE="ducky, post: 1935704, member: 94420"] First off either rifle will work fine, and I hate energy numbers. I've killed elk with a muzzle loader, and most of what I shot didn't generate 1,200 lbs-ft at the muzzle of energy. I still hammered elk with ease. You need enough to penetrate the vitals and then you'll have a dead elk. I try to use speed as a good indicator as to the max range of a cartridge for hunting. Most modern bullets work well down to 1,800 fps, so that's kind of where I work and why it doesn't matter what you choose. If you fall below 1,800 fps I find bullets will still kill at lower velocities, but they don't mushroom very well or create as much trauma in most cases. So it'll usually take more rounds on target or more tracking to recover your animal. I also believe twist rates help with bullet performance. I think the faster you spin a bullet, the better it expands on impact. So when I build a rifle I tend to use as fast of a twist as possible. I believe this to be a myth for the pumps, as Remington chambered the very same 760 rifles in .270 Win (1952) six years before they did the .280 (1958). The .270 was never offered in a semi-auto 740 or 742, it wasn't until 1981 the .270 was offered in the 7400 series of semi auto rifles. However, the 740 was chambered in .244/6mm Rem and .308 with a 65K and 62K PSI operating pressures. Best advice I ever got with my first .280 was from a buddy who had one. He said "Use .270 Win load data in your rifle", I did, and I got very similar performance to the .270 Win. If I still had the .280 Rem, I'd still be using .270 Win load data for the 140-160 grain bullets. [/QUOTE]
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.280 or 6.5x284 for elk
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