Seems I am in the minority on this one. I have never had good luck with any of the bulk packed bullets.
I have had good luck with the CCI line of ammo. the lone exception would be the Stinger, it just doesn't shot great in my guns.
Federal has never caught on for me in the rimfires.
Remington is known for its missfires and Winchester just seems so so, with the exception of the excellent Power Point.
RWS is another that is excellent. There Rifle Match and Subsonic are some of the most accurate I have shot. They are rather costly in comparison.
Top performer for me has been the CCI STD vel, SGB, Subsonic and CBLong bullets.
CW