How many RPM's is a bullet rotating fired out of a barrel with a 1:10 twist at 2700fps ? I came up with 3240 times per second or 194,400 PPM's am i correct?
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How many RPM's is a bullet rotating fired out of a barrel with a 1:10 twist at 2700fps ? I came up with 3240 times per second or
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No wonder the old .223 rifles with 1:9 twist would not stabilize the heavy bullets. I did a comparison and it takes 16% more revolutions to stabilize a 75gr in 1:7 twist over the 55gr in the 1:9 twist. I had a rifle with the 1:9 and it would keyhole the heavy ones.
The difference in the example is 705 feet per second increase in revolution for the 75gr. Just curious.
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