Don't know if you swung by and found out for yourself, but last time I was there, which was a Monday, the ranger showed up rather annoyed at my presence and started in asking me "was I aware the range was closed completely on Sundays?!?". I couldn't help but laugh to myself and respond that I was indeed aware of that, which seemed to put him off a bit, probably getting ready to write me a ticket (punk shooting a AK on a Sunday, perfect ticket fodder...) before I pointed out that it was actually a Monday, apparently he lost a day there on the weekend. Took a few seconds and repeating the date and he apologized and left rather embarrassed I think. Hope he wasn't drunk or something, lol. But anyway, that was about a year ago, don't know if it's changed since then.