I am a lvl 26 guns snipers. My support weapon is the riot shotgun. I also use explosives a bit: I always carry 2 grenades just in case (currently maxing explosives with remaining skill points). So I have 2 perks to choose. I don't use VATS much, so I didn't include VATS perks. Here are the perks I am thinking about:
Toughness: possible 2 ranks. +3 DT per rank.
Rad Absorption
Lady killer
Jury Rigging
Robotics Expert
Demolition expert (+20% dmg explosives)
Splash damage (+25% larger area of effect for explosives)
So, which 2 should I take ?
My current perks are:
Confirmed bachelor
Educated
Comprehension
Entomologist
Strong Back
Finesse
Silent Running
Better Criticals
Weapon Handling
Rapid Reload
Shotgun Surgeon
Living Anatomy
Hand loader