You need to see a gunsmith.
The Springfield 1903 has a 1" in 10" twist rate. The later M1 service rifle also has a 1" in 10" twist rate.
1:16
It will vary with caliber.
The "rate of twist on rifling" is caliber specific. To give you an answer we would need to know which cartridge the rifle is chambered for.
Blue book of gun values
1/10
1/10
ar-15
Depends on caliber. www.countrygunsmith.net
The Remington Model 66 is chambered for the .22 long rifle cartridge. The most common twist rate for the .22 long rifle is one full turn in sixteen inches (1:16).
The height of the 2013 Nissan Titan is 6 ft. 2.6 in. (74.6 in.).
The height of the 2010 Nissan Titan is 6 ft. 2.6 in. (74.6 in.).