You used about 4 ounces (by weight?) of corn sugar. If that's the case, it won't give bottle bombs but it will be pretty well carbonated. I usually use 5 ounces in a 5 gallon batch for medium carbonation. You'll have about 3.5 volumes of carbonation, if my calculations are correct.
You could uncap and recap if you want. Or you could test one a week and when it's the right carbonation, stick it in the fridge to slow down the yeast.