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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
204 Ruger Bullet Stabilization
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<blockquote data-quote="Nimrodmar10" data-source="post: 1146566" data-attributes="member: 36369"><p>I just bought a Savage 10FV in 204 Ruger to shoot prairie dogs with. I already own a 204 so i have several hundred loaded rounds. I mounted a scope and went to the range to see how it shoots. I sighted it in then strapped the Magnetospeed V3 to the barrel to see how fast the load was traveling out ot the 26" 1 in 12" twist barrel. The reloads were loaded with a Sierra 32 grain Blitzking bullet backed by 27 grains of H322 and a Remington 7 1/2 primer. The load chronographed at 4086 fps with an extreme spread of 22 fps for the 5 shot group. I shot 4 more 5 shot groups to see how accurate the load would be in the new rifle. All four of the groups were well inside 1 inch with two of them being 1/2" or so. The first shot on the third group looked odd on the paper, but i finished the group. When the range went cold, I retrieved the target and as you can see in the photo, the bullet keyholed. </p><p></p><p>I don't know why the bullet tumbled as it did. The 1 in 12" twist is standard for a 204 Ruger, so I can only assume it is the proper twist for the bullet and velocity. i was hoping someone here might be able to enlighten me.According to the Berger barrel twist calculator, none of the .204 bullet will stabilze in the .204 Ruger. I've shot enough rounds at prairie dogs to know that's not true, so what's up with the calculator? </p><p></p><p>Any ideas why the bullet tumbled would be appreciated.</p></blockquote><p></p>
[QUOTE="Nimrodmar10, post: 1146566, member: 36369"] I just bought a Savage 10FV in 204 Ruger to shoot prairie dogs with. I already own a 204 so i have several hundred loaded rounds. I mounted a scope and went to the range to see how it shoots. I sighted it in then strapped the Magnetospeed V3 to the barrel to see how fast the load was traveling out ot the 26" 1 in 12" twist barrel. The reloads were loaded with a Sierra 32 grain Blitzking bullet backed by 27 grains of H322 and a Remington 7 1/2 primer. The load chronographed at 4086 fps with an extreme spread of 22 fps for the 5 shot group. I shot 4 more 5 shot groups to see how accurate the load would be in the new rifle. All four of the groups were well inside 1 inch with two of them being 1/2" or so. The first shot on the third group looked odd on the paper, but i finished the group. When the range went cold, I retrieved the target and as you can see in the photo, the bullet keyholed. I don't know why the bullet tumbled as it did. The 1 in 12" twist is standard for a 204 Ruger, so I can only assume it is the proper twist for the bullet and velocity. i was hoping someone here might be able to enlighten me.According to the Berger barrel twist calculator, none of the .204 bullet will stabilze in the .204 Ruger. I've shot enough rounds at prairie dogs to know that's not true, so what's up with the calculator? Any ideas why the bullet tumbled would be appreciated. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
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204 Ruger Bullet Stabilization
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