Re: 240 Gr Match King
It depends on the MV. A program I have, Load From a Disk says at 2940 fps and up it needs a 10 twist, 3528 (rev/sec). 2930 fps and below needs a 9 twist, 3906 (rev/sec). That is what this program sayes, but if I remember correctly some have found the 10 twist at even lower MV to still work for them.