I just checked reserveamerica. There's still about 7 sites left in loop A for 14 days starting July 12th.
Go to http://reserveamerica.com
On the left Oregon under state.
Type in Bullards Beach
Select Specific Date
Click on the Arrival Date field, Select July 2007, click on 12.
Put the number of days you plan on staying in the Length of Stay field, up to 14,
Click on Search. All unreserved sites will show, Pick your and we'll see ya there.