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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Why Is My .280 AI so slow?
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<blockquote data-quote="TOM H" data-source="post: 662204" data-attributes="member: 306"><p>I'd read one of your early post about shooting 900yds with the 280AI and all seemed to be fine then.</p><p></p><p>I would assume you have talked to your gunsmith during the build as to bullets/twist and throating and the problems your now having?</p><p></p><p>I'm not sure I'd have patience trying 11/12 powders with two bullets without stepping back and rethinking something may be wrong either with my reloads or the rifle or just me.</p><p></p><p>I have one 280AI with a Kreiger barrel other one has Lilja and loading data came from Nosler manual the Krieger barrel set up for 150gr. In the Lilja barrel 280AI I've shot IMR-7828ssc with 160gr AB 1gr under max(60.5gr) @ 3058fps and the start load 57.5gr @ 2916fps. I've also tried R-17 in the Lilja barrel 280AI I started 53gr/R-17/160grAB @ 2834fps and 56gr/R-17/160grAB @ 3046fps and with both powders if I change over to a Fed 215M from Fed 210M I'd gain appr 50fps.</p><p></p><p>I had both 280AI custom throated. I just had Kreiger barrel put on my 2nd 300WSM first one has Broughton barrel and I have to say been good barrels on my rifles.</p></blockquote><p></p>
[QUOTE="TOM H, post: 662204, member: 306"] I'd read one of your early post about shooting 900yds with the 280AI and all seemed to be fine then. I would assume you have talked to your gunsmith during the build as to bullets/twist and throating and the problems your now having? I'm not sure I'd have patience trying 11/12 powders with two bullets without stepping back and rethinking something may be wrong either with my reloads or the rifle or just me. I have one 280AI with a Kreiger barrel other one has Lilja and loading data came from Nosler manual the Krieger barrel set up for 150gr. In the Lilja barrel 280AI I've shot IMR-7828ssc with 160gr AB 1gr under max(60.5gr) @ 3058fps and the start load 57.5gr @ 2916fps. I've also tried R-17 in the Lilja barrel 280AI I started 53gr/R-17/160grAB @ 2834fps and 56gr/R-17/160grAB @ 3046fps and with both powders if I change over to a Fed 215M from Fed 210M I'd gain appr 50fps. I had both 280AI custom throated. I just had Kreiger barrel put on my 2nd 300WSM first one has Broughton barrel and I have to say been good barrels on my rifles. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
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Why Is My .280 AI so slow?
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