Ajax, out around Mohave/Cal city is good shooting.Pine tree canyon is about 5 miles past the turn-off for lake isabella.Wide open spaces, shoot all you want,just please pack out all targets, the water district would love to close the area,people/idiots occasionally shoot at the concrete abutments holding up the Ca acquaduct(don't do it), and be watchful of moto-cyclists.
When I don't want to drive that far,I go to Lytle creek.