I have a very early 20 gauge Red Label (blued). Before he left Kodiak Sam Welch engraved my beloved hunting dog "Runyon" on the bottom of the receiver--flying dove and ptarmigan on the sides. The last retrieve Runyon ever did was the first bird my oldest son ever shot!
In the early 80's I had Stan Baker custom choke the 20, real open and full. I have shot lots of dove and quail with it. It handles OK, sort of the old boot comfortable feeling.