yes i see the same with w748.
i hunt short to long range, looking for a deer sized game bullet.
the combined tec @168 with win 748 shoots around .75 groups.
shoot a factory box of hornaday 168 match (2700fps) 1/4" to 3/8" groups this is outside the holes.
with a 11-1/4" twist should i use heaver or lighter bullets and at what fps?