**For {{Class|Iowa}} with the '''USN 16" Mk7''' guns, '''M''' may be better, the observed bonu being <math>\text{ACC}_\text{bonus} = 6 \times \sqrt{N_{16inch Mk.7}} + 12 \times \sqrt{N_{16inch Mk.7 GFCS}} </math>. | **For {{Class|Iowa}} with the '''USN 16" Mk7''' guns, '''M''' may be better, the observed bonu being <math>\text{ACC}_\text{bonus} = 6 \times \sqrt{N_{16inch Mk.7}} + 12 \times \sqrt{N_{16inch Mk.7 GFCS}} </math>. |