SAVAGE 30-30/20 GAUGE
I just took a look at one of my 20 ga slugs and I think that qualifies as big bore. Put one in a 6in aspen one time and tore the whole back of the tree. I wouldn't want to be hit by one. I traded my 30/30 over 20 off years ago but still have a 24 Camper in 22 and one in 222/20 ga. I would say you made a very good deal.
Old is not Obsolete