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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
280ai vs 284 Winchester
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<blockquote data-quote=".300 Dakota" data-source="post: 2081828" data-attributes="member: 106514"><p>I built both a couple of years ago. 280 AI was a Match chamber in Criterion heavy sporter 26" and McGowen was a 284 Match chamber in a 26" McGowen Varmint weight barrel. I got 3/8" groups in limited testing with the 280 AI and velocity on the 180 Bergers in the 26 - early 2800s. I got 2945 avg with the 284 with best groups at 1/2". 100yd test range both with 1:8 twists. </p><p></p><p>I couldn't believe the speed I got from the 284. Perhaps they cut the throat a bit longer in it, but both had long throats and I had the Bergers just touching the lands on both, so both are great. </p><p></p><p>Peterson makes some good brass for the 284 and you can still find Hornady and Winchester, also. </p><p></p><p>Nosler makes AI brass, as well as Hornady, but don't know if any others male it or not. They might.</p><p></p><p>I don't think you could go wrong with either, but I'm building another 284 with carbon wrapped barrel I was so impressed by the ballistics last time.</p></blockquote><p></p>
[QUOTE=".300 Dakota, post: 2081828, member: 106514"] I built both a couple of years ago. 280 AI was a Match chamber in Criterion heavy sporter 26" and McGowen was a 284 Match chamber in a 26" McGowen Varmint weight barrel. I got 3/8" groups in limited testing with the 280 AI and velocity on the 180 Bergers in the 26 - early 2800s. I got 2945 avg with the 284 with best groups at 1/2". 100yd test range both with 1:8 twists. I couldn't believe the speed I got from the 284. Perhaps they cut the throat a bit longer in it, but both had long throats and I had the Bergers just touching the lands on both, so both are great. Peterson makes some good brass for the 284 and you can still find Hornady and Winchester, also. Nosler makes AI brass, as well as Hornady, but don't know if any others male it or not. They might. I don't think you could go wrong with either, but I'm building another 284 with carbon wrapped barrel I was so impressed by the ballistics last time. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
280ai vs 284 Winchester
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