Did Big Green twist all the 6mm in a 10 9?
Rems .244 Remington rifles in the 70's era had a 1 in 12 twist which gunwriters of the day claimed wouldn't stabilize 100 grain bullets, although Bob Milek said he had a .244 Remington with that 1 in 12 twist that experienced no such problems.
Anyways they dropped the .244 and as far as I know every 6mm Remington they produced had a 1 in 9 twist.
Somewhere around 1970 Bob Brister wrote an article for Field & Stream titled '6 Mighty Millimeters' which resulted in my purchasing one in a Remington 700. No regrets either and still have the rifle to this day. It was in interesting read at the time to an 18 year old kid from the east.