Unclewhit,
Don't be fooled by the King....he's one of a select few who routinely scores in California. The guy is a friggin animal magnet.... "Long live the King" as the rest of we mere mortals politely bow-down or offer to light his stogie whence he passes by....but then again the King is a bit north of where you asked about.
As for stump stooting in the the Angeles National Forest, you are required to have an "Adventure Pass" to park your vehicle anywhere within the four National Forests of So CAL, You can drive through, you just can't park. (I.e. Los Padres NF, Cleveland NF, San Bernardino NF and the Los Angeles NF). Cost is about $30 and an extra $5 for a second Adventure Pass for another vehicle. Each year I have to pony up the money just to get around my town and it pisses me off. Each year I remind the Forest Service clerk that our fore-fathers once had a big Tea Party in Boston Harbor over similar taxation without representation. I'm guilty as the rest for not staging some type of revolt about this Taxation without representation.
While most of the rest of the country enjoys the prvilege of a pleasant day out stump shooting be prepared to explain what stump shooting is to the Game Warden and/or the Forest Service Rangers. Folks have been hasseled for "Hunting" stumps without a hunting license, and if those stumps are out of season.
Now that you've bought the Adventure Pass, found your way into the forest(be prepared for an arid environment in much of the "forest") you'll be competing with many different types of ethnic Gangsters for space once you've arrived. So Cal is immensely over-populated. In fact there are so many illegal aliens that the "Officials" don't even know how many people inhabit So Cal. There hasn't been an accurate head count in years. And it's not just Mexicans, there's every race, creed, color and type of aliens here.
Additionally the four National Forests mentioned above are all used to cultivate the "Evil Weed" MJ. So, in the summer times you could well stumble into someone Marijuana Garden which may or may not have armed guards.
The Peoples Republic of Kalifornication is not hunter friendly, at least in the Southern area. Most folks around here leave to hunt out of state. I despise living here, can't wait to get out....
Now if you'd like to do some shooting there is a pretty good infractructure of archery ranges. Somewhere most weekends there is a 3-d shoot, but that's not the roving/stump shooting you spoke of in the prior post.