I would just like to suggest that a mossberg 500 is perfect for these kind of situations.
http://www.davesguns.com/serverpics/...actical-01.jpg
retractable stock comes very handy. its very easy to unscrew the stock off over all great gun im hitting targets head size at 70 yrds with slugs. but mind you its a stationary target! and at that distance I dont know if its just me but its lookin no bigger than a fly at the end of my barrel.