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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Group size at what range?
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<blockquote data-quote="Fiftydriver" data-source="post: 429986" data-attributes="member: 10"><p>Freebird63,</p><p> </p><p>Just for the sake of conversation, how do you explain that a rifle can shoot 1/2 moa groups at 100 yards, 1/3 moa groups at 300 yards and 1/5 moa groups at 500 yards?</p><p> </p><p>To put that into actual inches. This particular rifle averaged 0.7" to 0.8" ctc three shot groups at 100 yards. Shot between 0.9" and 1.1" groups at 300 yards and has shot SEVERAL sub 1" ctc three shot groups at 500 yards.</p><p> </p><p>I have seen this with many rifles, also, the longer the bullet, the faster the twist, the faster the bullet is driven, the more dramatic this group size reduction can be when measured in MOA.</p><p> </p><p>Do not care what you call it, it happens, perhaps its being mislabeled but it certainly is real and it certainly happens. </p><p> </p><p>Now with low intensity, relatively short bullets at moderate speeds in conventional twist rates, it is not nearly as dramatic or measurable.</p><p> </p><p>This is really a moot point, until the rifle in question is properly tested from a solid shooting position, we can not begin to say why the groups are increasing in size. Shooting from a sitting position is no way to find the accuracy potential of a rifle. Great for field practice but not for evaluating a loads consistancy or a rifles accuracy potential.</p></blockquote><p></p>
[QUOTE="Fiftydriver, post: 429986, member: 10"] Freebird63, Just for the sake of conversation, how do you explain that a rifle can shoot 1/2 moa groups at 100 yards, 1/3 moa groups at 300 yards and 1/5 moa groups at 500 yards? To put that into actual inches. This particular rifle averaged 0.7" to 0.8" ctc three shot groups at 100 yards. Shot between 0.9" and 1.1" groups at 300 yards and has shot SEVERAL sub 1" ctc three shot groups at 500 yards. I have seen this with many rifles, also, the longer the bullet, the faster the twist, the faster the bullet is driven, the more dramatic this group size reduction can be when measured in MOA. Do not care what you call it, it happens, perhaps its being mislabeled but it certainly is real and it certainly happens. Now with low intensity, relatively short bullets at moderate speeds in conventional twist rates, it is not nearly as dramatic or measurable. This is really a moot point, until the rifle in question is properly tested from a solid shooting position, we can not begin to say why the groups are increasing in size. Shooting from a sitting position is no way to find the accuracy potential of a rifle. Great for field practice but not for evaluating a loads consistancy or a rifles accuracy potential. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
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Group size at what range?
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