You are thinking of accuracy in terms of precise shots in precise targets, but think of it from the perspective of being deterministic. If my rifle is accurate,

You are thinking of accuracy in terms of precise shots in precise targets, but think of it from the perspective of being deterministic. If my rifle is accurate, and deterministic, then I know I can land shots effectively at 600 yards for example using simple calculations. Or 800. Being able to do that has enormous significance in the battlefield.