Factory Ammo Velocity

[brazz04]

So I've decided I'm going to build a 12" ARC based on one of BFT's barrels.  In the mean time it will live as a 12" grendel with a monster barrel, but I figure it would be cool to have both and shoot the one with ammo available.  That said, can we get a thread started with velocities from factory ammo.  I know there aren't many short barrels as of yet, but I think a good set of data with many barrel lengths that was easy access would be awesome. 

Something like barrel length, ammo type, velocity would be perfect!  Thanks in advance!