Playing around in menagerie with vault weapons I rarely use and I was suprised at how fast it kills Greg 2.0 It averaged a 7.6 second kill. For comparison loaded question without auto loading abilities kills in 8.7 seconds, and trench barrel/1-2 punch shotguns killed in 10-12 seconds. Jotun without damage glitche 10 seconds. The caviot is, it need accelerater coils and high impact reserves. Any other perk combo greatly decreases the ttk.