If you don't mind the drive Manchester Firing Line (Manchester NH) will let you shoot a shotgun on their indoor range. I was there last week shooting my Glock 22 for the first time and some guy a couple of lanes over was blasting away at a full silhouette target with what looked like a Benelli M4
Thanks for your responses. I checked with Bob's Tactical and the Manchester Firing Line, and apparenly they are both slugs only. Does anyone know where one can do the patterning with 00 buck?
It's not public, but the Westford Sportsmen's Club allows slugs and buckshot on the rifle range for patterning and sight alignment. There are several members here who you could persuade to take you as a guest.