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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
AR15 POU: Effective range
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<blockquote data-quote="C Harrison" data-source="post: 1006162" data-attributes="member: 76871"><p>800 yards is achievable with any of the barrel lengths you mentioned albeit somewhat challenging with any wind. You may know, the 77gr SMK can be loaded to magazine length. If you need the bullet to do anything when it gets there other than mark steel or put a hole in paper then a longer barrel will give you very noticeable results at 800 yards. Take an inventory of your predicted shooting distances and determine what the middle 70% of your distances will be. Match the barrel and more importantly twist rate to that middle 70%. Having been in your shoes, once you make the decision you will wonder why you waited so long to "pull the trigger".</p></blockquote><p></p>
[QUOTE="C Harrison, post: 1006162, member: 76871"] 800 yards is achievable with any of the barrel lengths you mentioned albeit somewhat challenging with any wind. You may know, the 77gr SMK can be loaded to magazine length. If you need the bullet to do anything when it gets there other than mark steel or put a hole in paper then a longer barrel will give you very noticeable results at 800 yards. Take an inventory of your predicted shooting distances and determine what the middle 70% of your distances will be. Match the barrel and more importantly twist rate to that middle 70%. Having been in your shoes, once you make the decision you will wonder why you waited so long to "pull the trigger". [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
AR15 POU: Effective range
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