Just got a North American Arms Mini .22LR to carry in situations I can't carry my .45. Have been wondering what ammo to use in it whether it be hollow point or round nose. Just want to get some thoughts on what others think and what the reason behind it would be. I know a .22 isn't the best for protection but in the situation I will be using it in it is better then nothing and this is about as big as I can go in frame size.