I used the calculator here http://kwk.us/twist.html, and I came up with this.
I measured 10 bullets, and the average was .7228" in length.
The average was .430" in diameter.
It is a lead bullet, but mixed with alloy so I used 10.9.
I put in the average of 10.0 grains Unique. 1120 fps
I need a 1:30" twist barrel to actually shoot this bullet. To get the twist to 1:20 with these measurements I need the velocity to be 500 fps. 500 fps! From my .44 Magnum for the 1:20 twist barrel and this particular bullet.
Is this just way off or what?
Or without getting to far into physics would the 1:30 be the minimum twist, and the 1:20 be more on the optimum twist rate?
I was trying to figure out the velocity that would give best bullet stabilization for my loads without playing the guessing game.
I am probably way over my head.
I measured 10 bullets, and the average was .7228" in length.
The average was .430" in diameter.
It is a lead bullet, but mixed with alloy so I used 10.9.
I put in the average of 10.0 grains Unique. 1120 fps
I need a 1:30" twist barrel to actually shoot this bullet. To get the twist to 1:20 with these measurements I need the velocity to be 500 fps. 500 fps! From my .44 Magnum for the 1:20 twist barrel and this particular bullet.
Is this just way off or what?
Or without getting to far into physics would the 1:30 be the minimum twist, and the 1:20 be more on the optimum twist rate?
I was trying to figure out the velocity that would give best bullet stabilization for my loads without playing the guessing game.
I am probably way over my head.