I think that I have found loads with #1 buckshot exactly twice in my life. For potential "social encounters", I favor the extra pellets as compared to the venerable #00 buck.
Though I don't reload for shotgun (yet...???), there is the option of making my own using nominal .30 caliber round balls from a very old multi-cavity thing here. Have never run it long enough to get hot enough to get good fill.
Does anyone here have experience with rolling their own using #1 buck?
Would the little sprue thingies on those round balls cause any undesireable increase in how fast the shot cloud scatters into a large pattern with too many "holes" in it?
Thanks!