I'm down to basically 2, I have a Norinco JW15 .22lr for small game and a Howa Mini .223 for larger game.
I also have a Browning BL22 that came from my old man, that is mainly kept around for sentimental reasons and only pulled out for fine day hunting.

Next I'm thinking I need to add a larger round for big animals at longer range than I am confident with the .223, say a .30-06.