ArmoredFarmer has the right idea to my way of thinking.
The Silver Reserve is easily gotten in a double set. The 20ga frame will take a set of 28 ga barrels, so only take a couple seconds to change, and both barrel-sets have screw-in chokes,
the 28ga frame will take a set of .410 barrels, if THAT is the way U wish to go.
I started to order the 20/28 set until I realized the price of 28ga stuff.
As much as I would like, I can't get to any shooting to justify the expense.
I ended up loading my 12gauges with 20 ga loads.
I don't hunt waterfowl.
Have fun,
Gene