I know that I took a 1/7 & 1/9 twist rifle to the range one day and was shooting the orange tip tracers at 400 to 500 yards. With the 9 twist at about 200 to 300 yards the bullets would act as if they had a mind of their own and would fly off in all directions, some even went straight up. The 7 twist would send them where I shot them.

