22 caliber (.224" groove diameter), 1:8" twist.

30 caliber (.308" groove diameter), 1:11" twist.

44 caliber (..448" groove diameter), 1:16" twist.

Which one has the greatest angle the rifling presents to the bullet?

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22 caliber (.224" groove diameter), 1:8" twist.

30 caliber (.308" groove diameter), 1:11" twist.

44 caliber (..448" groove diameter), 1:16" twist.

Which one has the greatest angle the rifling presents to the bullet?

22 caliber (.224" groove diameter), 1:8" twist.

30 caliber (.308" groove diameter), 1:11" twist.

44 caliber (..448" groove diameter), 1:16" twist.

Which one has the greatest angle the rifling presents to the bullet?

The 1 in 8 twist.

The faster the twist the greater the angle.

Twist rates are based on the inches it takes for the bullet to make one full revolution=

1in 8 = 1 reveloution in 8" and so fourth.

J E CUSTOM

All the same angle.

The factors here amount to circumference traveled per bore travel

[2 sides of a triangle]

InvTan(Pi*Diameter/Travel)

All three are ~5 degrees

(I think)

[2 sides of a triangle]

InvTan(Pi*Diameter/Travel)

All three are ~5 degrees

(I think)

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