Originally Posted by
JimB..
I was going to say basically what EDG said, in short you have to think in 3 dimensions. The bullet leaves the barrel and because of the spin it moves off axis and is traveling in a spiral, the bullet settles down over time and is then traveling along a line. Think of the first part as a cone, and not 2 lines, and notice that if you put a target anywhere in the cone that the theoretical accuracy will be worse than if you put the target anywhere beyond the cone. Tada, short range accuracy can, in some cases, be worse than longer range accuracy.
What I’ve never seen is a bullet that’s more accurate at 200 and 600 than it is at 400. My expectation is that the cone, not the one discussed above where it’s going from wide to narrow, but the one where the bullet goes from narrow at the muzzle to wide, is quite short, not even 100 meters.