Some reloading manuals have tables in the reference section regarding rate of twist.

My lastest Sierra manual lists it as 1~10. But I've found that they are not ALWAYS right. Anomolies do exist, and often show up where one would least expect.

Best to check it oneself to be sure...

"As you walk thru life, don't be surprised that there are fewer people that you encounter seeking truth than those seeking confirmation of what they already believe!"