With some of the level 50's i have played with, some of them have guns that kill pratically anything in one shot, tearing them to shreds. is this an actuall gun or a mod cus it's a little boring to used i would think.
there is a slight lag when it hits, it's does it to everything, even the bosses, and no elemental effects i have seen maining cus they die to past. also i should say that i have never seen a damage count from the bullets
Best front-end nonelemental damage I have is a shotty that's 273x12. Even at point-blank this will not kill a bully in a single hit. Let alone bosses.
I have guns that will put down a lot of enemies quickly, and a metal storm soldier can get a pretty ridiculous fire rate (I think my absolute best would be around 20 with a high ROF machine pistol and metal storm on, more is possible with heavy gunner mods), but even that won't drop a bad guy instantly.