More accurate than 90 percent of the people who will shoot it.
Depends on caliber. www.countrygunsmith.net
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.
twist is 1:9
1/12
It will vary with caliber.
The rate of twist for a Browning X-Bolt 24-inch barrel typically varies depending on the specific caliber of the rifle. For example, the .308 Winchester generally has a twist rate of 1:10 inches, while the .30-06 Springfield may also feature a 1:10 twist. Always refer to the manufacturer's specifications for the exact twist rate corresponding to your specific X-Bolt model and caliber.
Impossible to answer without knowing the caliber.
the rate of twist i probably 9" or 1 in 9" not to sure.
The twist rate in a Winchester 670, 243 caliber is 1:10.
Odds are 1 in 8
1 in 10
1-in-66" barrel twist is a Kentucky rifle, not a Hawken. The Hawken brothers used a lot faster twist than that; you needed it for the prairies. Googling "Kentucky Rifle kits" will give you several makers of these rifles in kit form. As to legality for hunting? Any muzzle loading rifle that's at least 50 caliber is legal to hunt with in Idaho.