The Bazooka uses the Torgue barrel, giving it extremely high damage but very slow projectiles which are difficult to use against moving targets. A Bazooka with the Rocket Speedprefix will mitigate this and actually end up with a better muzzle velocity than a normal rocket launcher without a muzzle velocity prefix. Accuracy is relatively poor, and as with most Tediore launchers the damage is lower than a comparable Torgue weapon to balance the very fast reload.
As usual for a Tediore launcher, the weapon is thrown forward on reloading, with all rockets still in the magazine being expended and granting additional damage to the launcher's explosion. The launcher will fly forwards for a short distance before deviating sharply in a random direction. The barrel does not effect the speed or behavior of the discarded launcher.