They are a whole seperate animal. Size and dimensions are the same though. They do have a completely different trigger setup though, including a different sear than the rest. They are also large shank.

fyi, the target actions(and the lrpv dbm) front and rear action screw spacing is the same as a centerfeed short action(4.400"), so the stocks will interchange. You either just dont use the middle screw, or install a third pillar.