This is the schtick to focus on shooting one particular opponent.
Maybe you are a closet occultist, because when you burn with rage, you can name your bullets to imbue them with some of your hatred.
You can put someone's name on a bullet, marking it in some distinctive way and dedicating it against a specific named target. When you fire that bullet against the named target, fate and hatred will direct you aim, so that your attack has a base difficulty of zero rather than his Dodge. You can also penetrate any DamageImmunity the target may have.
You need not keep track of the order of your bullets or which magazine the named bullet is in; just declare that you are firing the named bullet.
Naming a bullet takes some passion and a short montage.