Ranged combat w/ two weapons is slightly different: (definitely not as severe)
In Ranged Combat
When using additional firearms (for example, a pistol in each hand) the attack value for each weapon is divided by the number of targets.
Also, in this case, Hotwire's overcharging his laser and shooting his slug thrower, right? If he fires both next round, the above would apply. Alternating between overcharging and a different gun is not dual weapons in ranged, technically.