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The Range
Rifle & Shotgun Discussion
Thoughts on AR's for long range
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<blockquote data-quote="henschman" data-source="post: 1456068" data-attributes="member: 4235"><p>The 5.56 will give you more options as far as bullet weight and bullet design goes. That is good, because you will want some of the heavier rounds for a clean kill at that range. I would go with 77 grainers. For those, you will need a barrel with a 1/8 or 1/7 twist rate though... what twist rate is your 5.56 rifle? </p><p></p><p>A longer barrel would definitely make for more ballistic effectiveness at 500 yards... the 5.56 relies on velocity for it's wounding potential. If your 5.56 is a 1/9 twist, I would sell it and buy something with a longer barrel in 1/8 or 1/7 for killing coyotes. If you already have a 1/7, it can get the job done if you know your come-ups for that distance with your particular load. </p><p></p><p>I wouldn't use a 5.45 for a yote rifle. It would be a better choice for a home defense rifle... surplus 5.45 with the air pocket produces some really nasty wounds at close range and won't penetrate walls very badly, though it will still penetrate soft body armor.</p></blockquote><p></p>
[QUOTE="henschman, post: 1456068, member: 4235"] The 5.56 will give you more options as far as bullet weight and bullet design goes. That is good, because you will want some of the heavier rounds for a clean kill at that range. I would go with 77 grainers. For those, you will need a barrel with a 1/8 or 1/7 twist rate though... what twist rate is your 5.56 rifle? A longer barrel would definitely make for more ballistic effectiveness at 500 yards... the 5.56 relies on velocity for it's wounding potential. If your 5.56 is a 1/9 twist, I would sell it and buy something with a longer barrel in 1/8 or 1/7 for killing coyotes. If you already have a 1/7, it can get the job done if you know your come-ups for that distance with your particular load. I wouldn't use a 5.45 for a yote rifle. It would be a better choice for a home defense rifle... surplus 5.45 with the air pocket produces some really nasty wounds at close range and won't penetrate walls very badly, though it will still penetrate soft body armor. [/QUOTE]
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