I just finished out all the 23 cartridges with a 32-20, its the 1st model with factory peep and I gladly payed $450 for it. My first, the 25-20 I gave $250 for 15 years ago. With the 75 gain Speer jacketed flat point its a great shooter and head shoots cottontails all day long. 23A in long rifle I got for a steal at $200. My Hornet I gave $400 for it in great condition....so long story short yes $300 is a good price, the 32-20 seems hardest to come by.
