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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
7mm saw vs 7mm-08 vs 7mm-08 AI
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<blockquote data-quote="std7mag" data-source="post: 2934999" data-attributes="member: 125590"><p>I shot straight 7mm-08 for a couple of years before I reamed my chamber to 7mm-08AI. </p><p>Not a true Ackley Improved, as P.O. Ackley never did anything with the 308 family of cartridges.</p><p>PT&G list it as Improved 40°. </p><p>I have PT&G reamer with a 0.06" freebore. </p><p>Suits the 140-150gr bullets well. </p><p>140gr Berger VLD had a COAL of 2.898". </p><p>In my Stevens 200 with factory 22" sporter barrel my accuracy nodes were towards the high end of the powder charge. </p><p>RL17 was speed king at 2,916fps.</p><p>H414, IMR 4350 & Alliant PP2000MR all averages 2,832fps in the node for each.</p><p>PP2000MR was go to powder though with ES-6, SD-2. </p><p></p><p>Did I really gain anything from going to AI? </p><p>Not really. </p><p>I trim every reload (Lee case length gauges) and found while it still trimmed some, it wasn't taking off as much as the standard 7mm-08.</p><p>Looked cool at band camp, though!! </p><p></p><p>I think with throating it more, that the 160-168gr bullets would perform well with the AI. </p><p>Heavier than that, I really think your better suited to go 284Win or bigger casing.</p></blockquote><p></p>
[QUOTE="std7mag, post: 2934999, member: 125590"] I shot straight 7mm-08 for a couple of years before I reamed my chamber to 7mm-08AI. Not a true Ackley Improved, as P.O. Ackley never did anything with the 308 family of cartridges. PT&G list it as Improved 40°. I have PT&G reamer with a 0.06" freebore. Suits the 140-150gr bullets well. 140gr Berger VLD had a COAL of 2.898". In my Stevens 200 with factory 22" sporter barrel my accuracy nodes were towards the high end of the powder charge. RL17 was speed king at 2,916fps. H414, IMR 4350 & Alliant PP2000MR all averages 2,832fps in the node for each. PP2000MR was go to powder though with ES-6, SD-2. Did I really gain anything from going to AI? Not really. I trim every reload (Lee case length gauges) and found while it still trimmed some, it wasn't taking off as much as the standard 7mm-08. Looked cool at band camp, though!! I think with throating it more, that the 160-168gr bullets would perform well with the AI. Heavier than that, I really think your better suited to go 284Win or bigger casing. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
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7mm saw vs 7mm-08 vs 7mm-08 AI
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