No flames intended, just for the record:
Random House, Compact Unabridged Dictionary
Profile (pro'fil), n. 1. the out line or contour... viewed from the side. OR lengths plus widths, perimeter.
I believe the length plays an important role in flight trajectory by I feel the overall profile is more important. That is why the Boat Tail appears to have an advantage in long flight over most bullets due to its aerodynamic behind the bullet. The coefficient of drag is also a determining factor as is the hollow point which cuts the air as opposed to pushing through it.
We should also consider the rifle... the article I mention tested five rifles with one other 1/12 twist, the Remington Model 700VSSF .233. Its numbers were completely different from the Ruger with the 68-gr. Black Hills Heavy Match HP shooting at .67" from the same shooter.
My point is, try different bullets of various manufactures in whatever rifle you have in 1/12. There has to be something out there that will give respectable results for informal shooting.