The Plasma Casters and the Darts really shred things in this game. Darts waste a lot of ammo, but if you get a Twin one with an element they do massive damage and are very safe to use since they seek enemies. You can just pp out and unload a clip in the general direction of enemies and they home in for a ton of damage. Plus wit that slight delay if you have say the Bee shield, they will still give you the amp damage for the last few if it regens before they go off if you happened to get hit while shooting.
If you like Terraria and can't wait for Starbound check out Darkout too (Greenlight it!): http://steamcommunity.com/sharedfiles/filedetails/?id=98158224
Also, I realize that you've stated that you don't want any Sniper recommendations, but you have GOT to try a Pimpernal if you haven't already. Even with around a measly 100-150 stacks, the gun just isn't fair for the enemies. If you learn to shoot the crotch with it, it deals hilarious amounts of crit damage with the extra projectiles.
This. My explosive Axton can do more damage on a crotch shot with the Pimp than he can with the Nukem.
i too am in the same boat as the thread poster. im using a binary thunderball fists, which is fun, but the delay on the shocksplosion is frustrating at times. does anyone have a shock version of the hail theyd wanna trade/dupe for? im very interested after reading about it to try it out. also im tryin to find a decent shock shotgun. im using the jolly roger, which is hitting for massive amounts of dmg (especially if the enemy is slagged) but im looking for something a little more mind blowing. if anyone wants to toss some guns my way to try out on her, ill gladly throw you some in return. also, to the OP, using a shock version of the sand hawk at close range is quite fun too. you can get crazy amounts of damage if most or all bullets land.
i used to run LBT and OC but the 50% ricochet destroyed the thunderball fists effectivness, so now i run: http://www.bl2skills.com/mechromancer.html#550000151000505105150501000000000000 which allows for the use of a shock infinity and somewhat usefulness of deathtrap as a meat shield that can do more damage.
Norfleet Shock infinity Chulainn Twister
It's a more rewarding build as whenever you kill something you can speed to the next one, and the infinity is great for headshots on robots, norfleet will get you up when you're down, twister kills ANY enemy (single player) in 4 shots. And the chulainn for the max shock damage.
Not changing this sig until i fix my time machine. Finished on 8/26/2012