Not so much a question as a recommendation based on some experience over the past few days.
If you are looking for a cheap cooler to use with an FX-6300, either for stock or a small overclock, then I would give two thumbs up to the TX3. More so the updated EVO addition. Mine is one of the older ones where the heat pipes cause there to be small furrows on the mounting plate.
I pulled this cooler off of my old dual core Phenom rig to see how it would handle things, and here were the results at stock:
Prime 95 on stock cooler, max temp: 58 degrees Celsius
Prime 95 on TX3, max temp: 34 degrees Celsius
Quite a nice delta there!