The M-1 as well. I too love the kinnngggg sound, and just sounds and feels like all those M-1 rifles in the old movies.

In terms of the game itself I like it best because you can use it like a sniper rifle and pick people of from far away, you can also use it as an assult weapon because it fires at a fast rate.

Of course I only play in the Realistic Damage servers. I think it is pretty worthless in the normal servers.