If the bullet is not stable and tumbles before it gets to the target, there very likely won't be a hole in the target to look at.
Because it won't even hit the target.
Spyvie... there appears to be something seriously wrong if it is spitting rounds out like that. I can't imagine it is very accurate passed 25 yards. I have never seen a rifle round hit the paper sideways. If it did, I would likely consider getting rid of that weapon/ammo/combination. Even a heavier bullet that fails to stabilize should not go head over heels.