This is interesting reading on the 20.. I have used one off and on since about 1959.. Most of my shooting has been with 12's, mainly my old 870.. But the 20 has killed plenty of game also..
I was looking over the regs. for hunting birds on some Federal Refuges. Here they call for nontoxic shot.. What shot do you 20 ga. fans use in this situation???
My choice for my guns is Kent Tungsten Matrix, almost the same density as lead (10.60 vs 11.10 gm/cc) but softer so safe for spendy barrels. It is indistinguishable from lead in the field. I do not hunt waterfowl over decoys so don't have the close shots some do, and in addition, my use of steel years ago left me very disappointed. I won't use it.
On a refuge for upland birds, as mentioned, you can't tell it from a lead load. Relatively spendy as opposed to steel but then you get what you pay for.
I order mine from Mack's Praire Wings online.
