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284 Ackley questions
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<blockquote data-quote="Alibiiv" data-source="post: 1730979" data-attributes="member: 69192"><p>Put the right barrel length, 26inch+, on the rifle and reap the harvest of the .284 Ackley Improved with the straighter taper and the 40 degree shoulder instead of the 35 degree on the .284 Winchester. The case is .475 at the juncture of the case juncture and the shoulder angle, 40 degrees ought to have some benefit. </p><p></p><p>I was told when I built the .270 Ackley Improved was not worth building also. I read where Ackley himself said that the cartridge was already overbore; but, his opinion was 50+ years ago. My gunsmith is the one who convinced me to build the .270AI after he told me the performance he was getting out of his. With the new, modern powders today I'm finding that the .270 Ackley certainly was worth building! I'm getting 3300fps with a 150 ABLR (BC of .625) out of a 26 inch Lilja barrel. And if one of the ammunition manufactures decides that the .284 Ackley Improved is the latest, fastest, deadliest, long-range, 1000 yard, elephant destroyer, cartridge of the century, then it will become famous; like maybe the .280 Ackley Improved.</p></blockquote><p></p>
[QUOTE="Alibiiv, post: 1730979, member: 69192"] Put the right barrel length, 26inch+, on the rifle and reap the harvest of the .284 Ackley Improved with the straighter taper and the 40 degree shoulder instead of the 35 degree on the .284 Winchester. The case is .475 at the juncture of the case juncture and the shoulder angle, 40 degrees ought to have some benefit. I was told when I built the .270 Ackley Improved was not worth building also. I read where Ackley himself said that the cartridge was already overbore; but, his opinion was 50+ years ago. My gunsmith is the one who convinced me to build the .270AI after he told me the performance he was getting out of his. With the new, modern powders today I'm finding that the .270 Ackley certainly was worth building! I'm getting 3300fps with a 150 ABLR (BC of .625) out of a 26 inch Lilja barrel. And if one of the ammunition manufactures decides that the .284 Ackley Improved is the latest, fastest, deadliest, long-range, 1000 yard, elephant destroyer, cartridge of the century, then it will become famous; like maybe the .280 Ackley Improved. [/QUOTE]
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