RE: slugs or buckshot?
Redsox.
Gorse pretty much covered it all...what type of semi do you use...i used to shoot the 11-87 premier and my father still does sometimes...worked great with a fullchoke and 3" 00 copper plated...modified worked well also...the reason why i use 3" is for the extra few pellets...if you take your time and pattern it well you should have no problem...my father also uses a slug gun..rifled out with a nice scope...he lieks it and is accurate out to a hundred yards or so...it was right on at 100 i think and he had the group touching each other...so whatever way you choose you should be ok..depends on the area and shot distance...