I worked up a load for a buddy's 300 wsm this summer using 168 ttsx's and 168 nosler J bullets. With identical powder charges they clocked identical speed. (A little surprising since the tsx is hugely longer and monolithic but apparently prove the grooves work). Anyhow both consistantly shoot great and both consistantly shoot to a diff point of impact. Sure would have been fun to give him a practice load that was identical cause even the bc's are nearly the same. Just doesn't work out that way often.
