Lots of ifs/ands/ors/ and buts. Varies by state and generally only under legally defined self defense situations with some judicial discrepancy, mind you it varies by state and some regions are so loose with it that you can just get murdered by going on someone’s property. Which may make sense if you live in the middle of fucking nowhere and give warnings and are a thirty minute drive from another person but there have been cases where shit like that happens in suburbs,.