Chance to hit is CAN YOU EVEN HIT THE TARGET, so It doesn't matter if you have a 1000% accuracy, if you have a 0% CHANCE TO HIT, you won't ever hit the target..EVER.
Accuracy is how MUCH OF THE TARGET GETS HIT IF YOU DO HIT THE TARGET.
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Define "Accuracy" for me please....
Well, to say the truth, the tool-tip isn't very accurate :p