I'm pretty sure the Acc math is different than the one BRJ worked on. The basic formula is the same, but they've fiddled with the numbers abit since my buddy wrote that. BRJ's formulae and thread though so far as I know is still the most current work on the forum.

DHCs and Beams have nothing resembling parity at 9km range. That particular chart is way way out of line. The old Starship Weapons Calculator is still fairly accurate by the way. The fiddling since it's last update has been substantially less.

DHCs, might as well be farting in the wind at 9km ranges. I don't know of any forum chart and forum formula, but Nagorak's Starship weapon calculator gets it pretty close.