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Long Range Hunting & Shooting
Christensen 280ai or build with proof research barrel?
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<blockquote data-quote="browning442" data-source="post: 1541830" data-attributes="member: 31891"><p>FYI i have two 280 AI's.... one built on a remington 700 trued up and 25" douglas barrel. I got the build done for about $1,300 then added a triggertech for another $125. Mine's an 8.5 twist and it is right on the edge of stabilizing the barnes 168 LRX (i haven't gotten them to shoot in my 7mag or other 280 ai either though). </p><p></p><p>It shoots 160 federal trophy bonded tipped reloads @ 3105 fps. </p><p></p><p>Other one was a savage with a criterion prefit i did.... 26" heavy sporter. Shot the Sierra 165 Gamechangers at 3155 fps, just started to see pressure. </p><p></p><p>A few things come to mind and one has been mentioned: </p><p>1. Twist - not sure what CA does in their 280 AI, but a custom would allow the twist you wanted.</p><p>2. Freebore - not sure what to expect with the CA, you could have your custom throated accordingly to the bullets you wanted to shoot.</p><p>3. Barrel length - self explanatory</p><p></p><p>RL26 gets 50-100 fps more than any other powder i tried (7828ssc, 4831sc, ramshot mag). RL26 isn't the most temp stable but isn't the worst. It really makes the 280 AI shine in my book. Shooting it is a pleasure compared to a true magnum.</p><p></p><p>Best of luck... I don't think you'll go wrong either way.</p></blockquote><p></p>
[QUOTE="browning442, post: 1541830, member: 31891"] FYI i have two 280 AI's.... one built on a remington 700 trued up and 25" douglas barrel. I got the build done for about $1,300 then added a triggertech for another $125. Mine's an 8.5 twist and it is right on the edge of stabilizing the barnes 168 LRX (i haven't gotten them to shoot in my 7mag or other 280 ai either though). It shoots 160 federal trophy bonded tipped reloads @ 3105 fps. Other one was a savage with a criterion prefit i did.... 26" heavy sporter. Shot the Sierra 165 Gamechangers at 3155 fps, just started to see pressure. A few things come to mind and one has been mentioned: 1. Twist - not sure what CA does in their 280 AI, but a custom would allow the twist you wanted. 2. Freebore - not sure what to expect with the CA, you could have your custom throated accordingly to the bullets you wanted to shoot. 3. Barrel length - self explanatory RL26 gets 50-100 fps more than any other powder i tried (7828ssc, 4831sc, ramshot mag). RL26 isn't the most temp stable but isn't the worst. It really makes the 280 AI shine in my book. Shooting it is a pleasure compared to a true magnum. Best of luck... I don't think you'll go wrong either way. [/QUOTE]
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Christensen 280ai or build with proof research barrel?
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