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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
175 smk or 168 smk for 308 winchester?
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<blockquote data-quote="eshell" data-source="post: 249613" data-attributes="member: 5747"><p>This is spot on. Unless the 168 is driven faster than practical length .308s will go, it is surpassed by the 175 at mid-range distances (600-700 yards) in all aspects. As soon as the 168s go trans-sonic, they usually destabilize.</p><p>The .30-06 is entirely different and will get more from the 168s than the OP's .308 will.My experience in three .308 rifles as well.I tried my best to shoot 155 Scenars, but none of my .308 rifles like them. A friend shoots them with Varget out of an FN SPR and they deliver 1/2 MOA groups and he easily gets them to 2,975 - makes the .308 a whole new proposition. I did get them to shoot well from my .30-06 AI, which will comfortably run them at 3,100, but I'm not confident in their ability to expand reliably. I shot a bedded deer at 392 yards through both shoulders and only got about 1-1/2" exit after breaking one shoulder and barely missing the bone on the off side.I'd like to run Bergers myself, but see the same problem, they'd have to be single-loaded in a short action.The SMKs ARE very flexible bullets with regard to throating and seating depth.I get sideways hits with 168s as soon as 800 at sea level (DA @ -500 to +1,000) sometimes, and they'll go as far as 1,150 for me when we shoot at 3,000 ASL (DA @ +4,500)I've got my daughter shooting a fast twist (1:7.5 Schneider) .243 with 105 Scenars at 2,975 and they are VERY accurate and have been stable to 1,200, the furthest we've shot them.</p></blockquote><p></p>
[QUOTE="eshell, post: 249613, member: 5747"] This is spot on. Unless the 168 is driven faster than practical length .308s will go, it is surpassed by the 175 at mid-range distances (600-700 yards) in all aspects. As soon as the 168s go trans-sonic, they usually destabilize. The .30-06 is entirely different and will get more from the 168s than the OP's .308 will.My experience in three .308 rifles as well.I tried my best to shoot 155 Scenars, but none of my .308 rifles like them. A friend shoots them with Varget out of an FN SPR and they deliver 1/2 MOA groups and he easily gets them to 2,975 - makes the .308 a whole new proposition. I did get them to shoot well from my .30-06 AI, which will comfortably run them at 3,100, but I'm not confident in their ability to expand reliably. I shot a bedded deer at 392 yards through both shoulders and only got about 1-1/2" exit after breaking one shoulder and barely missing the bone on the off side.I'd like to run Bergers myself, but see the same problem, they'd have to be single-loaded in a short action.The SMKs ARE very flexible bullets with regard to throating and seating depth.I get sideways hits with 168s as soon as 800 at sea level (DA @ -500 to +1,000) sometimes, and they'll go as far as 1,150 for me when we shoot at 3,000 ASL (DA @ +4,500)I've got my daughter shooting a fast twist (1:7.5 Schneider) .243 with 105 Scenars at 2,975 and they are VERY accurate and have been stable to 1,200, the furthest we've shot them. [/QUOTE]
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175 smk or 168 smk for 308 winchester?
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