as an aside, and on the issue of recoil management, i remembered...

as an aside, and on the issue of recoil management, i remembered seeing the below submachine gun on an episode of CSI: NY -- it fires two bullets in quick succession, able to hit the same point/target -- in the episode they were mystfied initially about a victim having two bullets lodged within them, but only one point of entry... which lead to the below being shown as the weapon used...

some info on these guns here:

http://www.imfdb.org/wiki/TDI_Vector


good luck