I have never, EVER, NOT EVER, (NEVER) seen ANY authority on self-defense or firearms advocate the use of warning shots.
I have seen many authorities on self-defense and firearms say that warning shots are a very bad idea.
If you are justified in firing a shot, you should be aiming at the threat. If you do not feel justified in firing at the threat then you should not fire at all.
There is no way to predict what the bullet is going to do or where it is going to go for certain unless there happens to be a well-designed backstop handy and at the proper angle to you.
I'm glad that you achieved good results by using a warning shot in the past, but I would recommend that you never do it again.
I have seen many authorities on self-defense and firearms say that warning shots are a very bad idea.
If you are justified in firing a shot, you should be aiming at the threat. If you do not feel justified in firing at the threat then you should not fire at all.
There is no way to predict what the bullet is going to do or where it is going to go for certain unless there happens to be a well-designed backstop handy and at the proper angle to you.
I'm glad that you achieved good results by using a warning shot in the past, but I would recommend that you never do it again.