hey guys, thanks for trying to help me out. i have floated the barrel, i have shot 1000 yards 2 times, and it has done it both times. the group consistantly walks downhill. i have really knoticed it at long range, but i have not tried shooting it at maybe 100 yards to see if it does it there.
my set up is: *winchester model 70, 270wsm
*Vortex crossfire 6-24x50 mil-dot/w turret system
*Nosler 140g Hunting Ballistic tip hand loads, 3067 fps
the heat is sounding resonable, because as your barrel expands from the heat you get less pressure, and that means less velocity, which would cause it to consistantly start dropping low.
my shots are placed about 1-2 minutes apart.