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Rifles, Reloading, Optics, Equipment
AR15/10 Rifles
Useful range of 5.56, 1:7 twist, 16" barrel? (loaded question, pun intended)
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<blockquote data-quote="Doom2" data-source="post: 3087380" data-attributes="member: 108323"><p>It obviously depends on the intended use and needed terminal ballistics but a 77 SMK will stay supersonic to about 800yds when launched at 2700 fps which is about the maximum for that barrel length. The bullet hits the transonic range about at about 675 yds and 1800 fps about 420yds. Practically I would call it a 600yd rifle.</p></blockquote><p></p>
[QUOTE="Doom2, post: 3087380, member: 108323"] It obviously depends on the intended use and needed terminal ballistics but a 77 SMK will stay supersonic to about 800yds when launched at 2700 fps which is about the maximum for that barrel length. The bullet hits the transonic range about at about 675 yds and 1800 fps about 420yds. Practically I would call it a 600yd rifle. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
AR15/10 Rifles
Useful range of 5.56, 1:7 twist, 16" barrel? (loaded question, pun intended)
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