I just got a gun from the Rock Island auction and the book states that it is a Belgium 20 ga. hammer gun. When I got home and was going over the proofs, I noticed that it is a 24 ga. not a 20 ga. It is a very nice gun but I was hoping that I was buying a 20 ga. Is a 24 ga. worth more than a 20ga.? What would you do about this. I need some advice. Thanks, frank