I bought some cheap Winchester 00Buck and it was hitting high and too the left. Every Shell had the same effect, I used some Federal Shells in a Half/Half tube of Winchester and Federal and the Target had scattered Buckshot on the left side still from the Winchester and the Federal 00 Buckshot was on Target. What number of Shot is Most Effective for Home Protection a #4 Buckshot or a 00 Buck? My Local Gun stores here in Ca. Only seem to carry these two types of Buckshot?