I use Neopan 400 @ 3200 in my Kiev4a for this purpose. I close the iris as much as possible to not have to worry about focusing and the shutter speed as much over 1/500 as possible as I tend to shoot stealth-from-the-hip.
This one is Neopan400@3200,Kiev4a,F22,1/1250 souped in XTol (1:2, 20 mins, Bes Motor base).
The full size is at
http://farm5.static.flickr.com/4096/...0d3f43_o_d.jpg for those that want to peek at the grain.
Now that is 35mm. I would imagine that MF or LF could fair far greater.