the bearing surface on 75's is shorter so the loss in BC is made up for by increase in velocity
as for game.. can't say.. 75's are real good beyond 200 yards.. they kill inside that distance. but are "splashy" can't think 5gr will drastically change that fact
again conjecture.. go kill stuff with the 80gr and report back.
My experience with the 80's is that they are indeed less splashy.
The 75's almost always unglue a prairie dog inside 300 yards where the 80's literally penciled through them when both have a muzzle velocity above 3,400 fps.
