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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
long or short barrel for new build
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<blockquote data-quote="Buffalobob" data-source="post: 272463" data-attributes="member: 8"><p>At 1000 yards, the loss of velocity is about 50%. So every 200 fps of muzzle velocity gives you another 100 fps of terminal velocity. Or to put it a different way, it gives you another 100 yards of range before the bullet begins to go subsonic.</p><p></p><p>What we see frequently at Quantico F-class is that the 20 inch short fat barreled 308s will not make it to 1000 yards with some brands of ammo before going subsonic. Some days they don't make it to 900 yards. The combination of low BC and low muzzle velocity is at work, plus we are at sea level.</p></blockquote><p></p>
[QUOTE="Buffalobob, post: 272463, member: 8"] At 1000 yards, the loss of velocity is about 50%. So every 200 fps of muzzle velocity gives you another 100 fps of terminal velocity. Or to put it a different way, it gives you another 100 yards of range before the bullet begins to go subsonic. What we see frequently at Quantico F-class is that the 20 inch short fat barreled 308s will not make it to 1000 yards with some brands of ammo before going subsonic. Some days they don't make it to 900 yards. The combination of low BC and low muzzle velocity is at work, plus we are at sea level. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
long or short barrel for new build
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