Lytle Creek is much nicer now. I like it better than Burro Canyon. The downside is that occasionally the cops roll in and want to check on everyone before they leave, essentially go on fishing expeditions. That's what a range officer said, anyways. Their excuse is that they're looking for gang members. Never actually seen that happen, though (perhaps the guy was pulling my leg). It's not too rigid, but it isn't the mess that it used to be.
West End, though, blows any other range in the area out of the water, provided you're a member or their guest.
As far as BLM land goes, I've never heard about anything that allows shooting around Elsinore, but I don't know that it doesn't exist, either. Many areas people think are legal to shoot in (and often do) in that general area have, when I've looked them up, proven to be places where discharge of firearms is prohibited or which are shotgun only. I know a lot of shooting areas have disappeared over the years. The desert in San Bernardino and Kern Counties is still the best bet, IMO, as there is lots of land where one may discharge any sort of firearm. I know there are BLM maps out there that cover what can be shot where; I've seen them for Kern, San Bernardino, and Riverside Counties. It might help to do a search or see what info your local gun store has (sometimes they have BLM maps; one of the Turner's out where I live had them).