If the objective bell clears the barrel, I'd not worry about any amount of gap, the measurement at this spot once cleared has no bearing. What is important, however, would be the location of the scope tube center in relation with your line of sight. Using your best form, mount the rifle to make sure a peephole down the center of the tube lines up with your eye. At that point, you'd be golden, as long as the bolt handle clears and you leave the port unobstructed.
For me, my combination lines up at a near perfectly natural, almost instinctive, line of sight. Flip side, someone who prefers to stock crawl to the extreme may find a less pleasing result. Every stock profile doesn't fit everyone equally well. It's a great fit with me, maybe not so with another.
Best