Board Thread:Questions and Answers/@comment-26297438-20150911192836/@comment-26337865-20150912021326

A 41cm +4 has +4 accuracy and a total of 22 firepower if you calculate FP from improvements with sqrt(2*n) where n=no. of improvements. It gives a total of 23 FP if you calculate it with a different formula that was proposed, which is 1.5*sqrt(n).