12 gage shotgun works well, never leave food in a car !
better you car than your tent. We told campers to lock food in there cars and not their tents. Guy with rag top Jeep didn’t want his car destroyed so he put food in his tent with family. Bear came into the tent, luckily no one hurt. Well, Bear was destroyed.
After that we spent $100,000 in bear proof food storage containers for the campground (over 100 sites) . In my line of work, I don’t have bear problems, I have people problems.