If you build a long range .30 cal rifle and intend to use the 240 grain Match King, make sure to specify a twist rate of 1 in 9 inches.
The standard one in 10 or one in 12 inch twist will not provide top accuracy with the long 240 grain bullet.
Mad
The standard one in 10 or one in 12 inch twist will not provide top accuracy with the long 240 grain bullet.
Mad