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Long Range Hunting & Shooting
270 Winchester Ackley Improved Load Data
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<blockquote data-quote="Big Jake Duke" data-source="post: 459677" data-attributes="member: 29978"><p>What I can't understand is how badly the 270 improved is trashed, by people who don't own them, and the 280 AI is lauded.</p><p> </p><p>They should be nearly identical. The 270 win has had a slight edge over the 280 with 140gr. The increase in performance according to some sources by making a 270 improved is 7.8%, the 280's improvement in performance is rated at 7.7%.</p><p> </p><p>So how can one be a piece of crap and the other the best thing since sliced bread?</p><p> </p><p>I understand there are heavier bullet choices in the 7mm, but as for shooting Nosler accubonds or ballistic tips, the bullets are too similar to differentiate.</p><p> </p><p>It seems the people with them love them, and I think I am going to give it a try. IMR 7828 and a few others have breathed new life into the "overbore category", and I think the debate isn't over. So I'll spend a few dollars to make a fool of myself.</p><p> </p><p>My current load in the 270 win with a 26" Douglas Airguage bbl, runs the 140gr nosler ballistic tip out the barrel at 3200fps with 60 gr of H4831. A hot load, but not rediculous. Use at your own risk. The same load will hold 3012 fps with a 22" barrel. I think the inclusion of a few more grains of powder-in a more effecient burning cartridge AND the 26" barrel will be a really cool long range weapon.</p></blockquote><p></p>
[QUOTE="Big Jake Duke, post: 459677, member: 29978"] What I can't understand is how badly the 270 improved is trashed, by people who don't own them, and the 280 AI is lauded. They should be nearly identical. The 270 win has had a slight edge over the 280 with 140gr. The increase in performance according to some sources by making a 270 improved is 7.8%, the 280's improvement in performance is rated at 7.7%. So how can one be a piece of crap and the other the best thing since sliced bread? I understand there are heavier bullet choices in the 7mm, but as for shooting Nosler accubonds or ballistic tips, the bullets are too similar to differentiate. It seems the people with them love them, and I think I am going to give it a try. IMR 7828 and a few others have breathed new life into the "overbore category", and I think the debate isn't over. So I'll spend a few dollars to make a fool of myself. My current load in the 270 win with a 26" Douglas Airguage bbl, runs the 140gr nosler ballistic tip out the barrel at 3200fps with 60 gr of H4831. A hot load, but not rediculous. Use at your own risk. The same load will hold 3012 fps with a 22" barrel. I think the inclusion of a few more grains of powder-in a more effecient burning cartridge AND the 26" barrel will be a really cool long range weapon. [/QUOTE]
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270 Winchester Ackley Improved Load Data
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