1 in 16"
Your Winchester model 70 bolt action rifle that is chambered in .300 Win Mag,has a twist rate of 1 in 10.
What I have found is its 1-10" for 308.
6mm Remington twist rate is 1 in 9, 244 Remington twist rate is 1 in 12. The 1 in 12 twist will not stabilize long 100 grain bullets while the 1 in 9 twist will.When the the caliber .224 Remington's name was changed to 6mm Remington, the twist rate was changed.
The twist rate in a Winchester 670, 243 caliber is 1:10.
Them twist rate of a Winchester model 70 rifle in .223 Rem.is 1"in 9".
It will vary with caliber.
twist is 1:9
1:10
1 in 10
That would depend on the caliber of the particular Remington Model XP-100 you have. Remington chambered these hand-guns in a multitude of calibers from .221 Fireball and up to the .350 Remington Magnum, so rifling twists will be different from one caliber to the next and the specific twist in that barrel will play a big role in how accurate a bullet performs.
9.5