Blaster Rifles & Heavy Weapons

[Kjelties]

Does the dual weapon wielding Feat improve performance for Blasters Rifles and other Heavy Guns (repeating blaster and such) and does the feat work the same in both KOTOR'S? I know for sure it works for melee and dual blasters but i am not clear about 2 handed ranged weapons. Thanks already

[Achilles]

Neither the two-weapon fighting nor the dueling feats affect large weapons (i.e. blaster rifles or heavy weapons).