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Rifles, Reloading, Optics, Equipment
Reloading
What's the maximum 7mm bullet weight for 1:9.5
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<blockquote data-quote="cjuve" data-source="post: 1471827" data-attributes="member: 31341"><p>I use Berger's twist rate calculator to figure the best twist rates for bullets that I intend to use and try to plan accordingly. With that being said I have run bullets that according to the calculator are marginally stable. The only issue that I have noticed was that the BC seems to be affected, I use a magnetospeed to collect velocity data so my velocities were solid, zero was solid but drops were more than expected and less consistent in varying conditions. I also have another rifle in the same caliber with a faster twist rate, with nearly identical loads and the faster twist rate, drops were spot on. With consistency being the name of the game in long range you are best suited to use a bullet that is fully stable in all the conditions that you plan to shoot. A marginally stable bullet according to the calculator may be fine(no tumbling) if you limit your intended range but the further you push it out there the more likely you are to have problems. My advice would be to use the calculator and find the heaviest bullet that will remain stable in all conditions that you in to encounter.</p></blockquote><p></p>
[QUOTE="cjuve, post: 1471827, member: 31341"] I use Berger’s twist rate calculator to figure the best twist rates for bullets that I intend to use and try to plan accordingly. With that being said I have run bullets that according to the calculator are marginally stable. The only issue that I have noticed was that the BC seems to be affected, I use a magnetospeed to collect velocity data so my velocities were solid, zero was solid but drops were more than expected and less consistent in varying conditions. I also have another rifle in the same caliber with a faster twist rate, with nearly identical loads and the faster twist rate, drops were spot on. With consistency being the name of the game in long range you are best suited to use a bullet that is fully stable in all the conditions that you plan to shoot. A marginally stable bullet according to the calculator may be fine(no tumbling) if you limit your intended range but the further you push it out there the more likely you are to have problems. My advice would be to use the calculator and find the heaviest bullet that will remain stable in all conditions that you in to encounter. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
What's the maximum 7mm bullet weight for 1:9.5
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