Of course, it could also be a lot of the people who have moved here in the last 10 years buying guns.
I could see that. I had lots of guns when I moved here from CA. Now I have lots more guns (or did, until the unfortunate boating accident).
I would say that 75% of the time I'm in one of the gun stores around here, I hear a conversation between a customer and an employee where the customer is saying along the lines of, "Now that I'm out of stinkin' CA, I want guns I couldn't have before."