I shoot Hevi Metal and Kent Fast Steel (both #2's) out of Rhino Mod choke.
I use a Rhino IC choke with Hevi Metal #4's for shooting the feet down decoying ducks (which is what I would rather shoot).
I am shooting 3" shells out of a Beretta Extrema II

I may not be smart but I can lift heavy objects

I have a shotgun so I have no need for a 30-06.....