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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
6.5 Sherman VS 280 Ackley Improved
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<blockquote data-quote="archangel485" data-source="post: 1964339" data-attributes="member: 97905"><p>On to the topic at hand, I 100% agree with [USER=13632]@bigngreen[/USER] about the 6.5 barely getting warmed up at 600. For that fairly short range, 6.5 SS is no problem on elk. By the way, maybe I missed it, but I didn't see anyone mention the SST version? Rich has an SST which obviously will give up some performance but no fireforming is required, (correct [USER=13833]@elkaholic[/USER] ?) and feeding will be better (not that it matters on a hunting rig a whole lot).</p><p></p><p>To answer your original post, I can think of 3 reasons I'd consider 7mm over 6.5mm. If more down range energy is needed, if less wind drift is critical or if more barrel life is important. We've already discussed that a 6.5 has plenty of energy for a 600 yard elk, so only time energy will be a problem is past 1000-1200 and I'm not shooting elk that far anyways, but on steel those 180s make a noticeably larger impact than the 140s and 150s. Wind drift again you're not going to notice much difference until about 1200 yards, and even at that range you're probably looking at 0.5-1.5 MOA difference, depending on bullets/speed. Last but not least is barrel life, and if this is a hunting rifle, your grandkids will be old people before the barrel burns out, unless you just shoot it a lot for practice.</p><p></p><p>I'll also throw out there that Rich's several good 7mm options are great, and if it were me (and I did FWIW) I would go with a 7SS or 7SST if I had chosen 7mm over 6.5. I am a short action supporter though, love everything about them, parts availability is the big one, but also shorter cycle for faster shooting. Plus since this is a mountain rifle, SA is lighter weight, might be something you should consider.</p></blockquote><p></p>
[QUOTE="archangel485, post: 1964339, member: 97905"] On to the topic at hand, I 100% agree with [USER=13632]@bigngreen[/USER] about the 6.5 barely getting warmed up at 600. For that fairly short range, 6.5 SS is no problem on elk. By the way, maybe I missed it, but I didn't see anyone mention the SST version? Rich has an SST which obviously will give up some performance but no fireforming is required, (correct [USER=13833]@elkaholic[/USER] ?) and feeding will be better (not that it matters on a hunting rig a whole lot). To answer your original post, I can think of 3 reasons I'd consider 7mm over 6.5mm. If more down range energy is needed, if less wind drift is critical or if more barrel life is important. We've already discussed that a 6.5 has plenty of energy for a 600 yard elk, so only time energy will be a problem is past 1000-1200 and I'm not shooting elk that far anyways, but on steel those 180s make a noticeably larger impact than the 140s and 150s. Wind drift again you're not going to notice much difference until about 1200 yards, and even at that range you're probably looking at 0.5-1.5 MOA difference, depending on bullets/speed. Last but not least is barrel life, and if this is a hunting rifle, your grandkids will be old people before the barrel burns out, unless you just shoot it a lot for practice. I'll also throw out there that Rich's several good 7mm options are great, and if it were me (and I did FWIW) I would go with a 7SS or 7SST if I had chosen 7mm over 6.5. I am a short action supporter though, love everything about them, parts availability is the big one, but also shorter cycle for faster shooting. Plus since this is a mountain rifle, SA is lighter weight, might be something you should consider. [/QUOTE]
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6.5 Sherman VS 280 Ackley Improved
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