No.1 - it's a 'Barrett'
No.2 - it has a painfully slow rechamber time (over 2 seconds!)
No.3 - it deals only 125hp of damage (enough only to kill a light (120hp) but not a medium or heavy (140hp, and 180hp respectively)
No, its Barnett, we got "Barrett" from Cinna, who appearantly didn't look too closely at the name, an easy mistake to make. He was expecting to see "Barrett", so he did.
Most lights will have some form of buff or another, so it will be a two hit kill on pretty much anyone that hasnt been hurt.
You are right about the time it takes to work the bolt though, which is why i suggest the Drognav for CQC, its a 3 shot on a buffed medium or heavy, but the .3s RoF will be a lot more useful.
Edit: :ninja: 'd