Yes, but you'll run out of ammo quickly.
If you have the LSAT that can still kill, but it's slow.
But the best is definitely the SVU PaP.
And I would definitely keep the paralyzer around, because if you run out of ammo in your other 2 guns, you can use it to get out of corners and such. Maybe not necessarily for the actual killing, but definitely for training and surviving.
Look up some stratagies on youtube and practice them. There is one I watched where a guy went to 144 with the resenator and the turbine near jug. Its a pretty simple strat and seems to be one of the fastest on youtube for getting to high rounds on Buried. I use a camp strat where I leave a couch on the roof of the parts room. Paralyzer your way up there and the zombies can only get to you from one direction. Vulture Aid and PaP Paralyzer is all I needed. My ps3 shut itself off at round 50 but I am sure I could have gone to any round I wanted. It may take a while unless you start using a trap stat of somekind. It just seems to me that after a certain point guns become pointless. I just started getting to high rounds consistaintly so I am also looking for any kind of tip or trick to carry me even further.