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6.8 Remington SPC
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<blockquote data-quote="Charles A" data-source="post: 9596" data-attributes="member: 231"><p>Since this is somewere near my alley I'll try to set most straight. </p><p></p><p> The M16/M4 series of today are durable, reliable, and accurate enough for there purpose. The 5.56 variety is also extremly lethal as long as you understand its limitations. With M855 or M193, impact velicity must be 2700fps or more for reliable fragmentation. What that gives you is about 240m for the 20in barreled M16, and about 140-160m for the 16in M4. Both are well withen almost all engagments. </p><p> Now, with the 77gr OTM round its a whole different ballgame. Pretty much if you can see it through a CC0, you can kill it.</p><p></p><p> On the 6.8 SPC, the group that designed it are very knoweldgeable. Soldiers from 5th Group, the AMU and a couple indipendent terminal ballistic guys are what created this.</p><p></p><p> Several cases were tested for maximum feeding reliability. All calibers from .24-.30 were tested for the best terminal and external ballistics. </p><p> After all was said and done, the one that was the best OVERALL, from CQC distance to 500m, the most reliable without having to recreate the weapon system, and controllable in full-auto fire was the 6.8SPC with the 115gr Hornady OTM.</p><p></p><p></p><p>Hope that helps. <img src="http://images/icons/smile.gif" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p></blockquote><p></p>
[QUOTE="Charles A, post: 9596, member: 231"] Since this is somewere near my alley I'll try to set most straight. The M16/M4 series of today are durable, reliable, and accurate enough for there purpose. The 5.56 variety is also extremly lethal as long as you understand its limitations. With M855 or M193, impact velicity must be 2700fps or more for reliable fragmentation. What that gives you is about 240m for the 20in barreled M16, and about 140-160m for the 16in M4. Both are well withen almost all engagments. Now, with the 77gr OTM round its a whole different ballgame. Pretty much if you can see it through a CC0, you can kill it. On the 6.8 SPC, the group that designed it are very knoweldgeable. Soldiers from 5th Group, the AMU and a couple indipendent terminal ballistic guys are what created this. Several cases were tested for maximum feeding reliability. All calibers from .24-.30 were tested for the best terminal and external ballistics. After all was said and done, the one that was the best OVERALL, from CQC distance to 500m, the most reliable without having to recreate the weapon system, and controllable in full-auto fire was the 6.8SPC with the 115gr Hornady OTM. Hope that helps. [img]images/icons/smile.gif[/img] [/QUOTE]
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