I have very good results, accuracy wise with Eley and Lapua. For reliability in an autoloading rifle I try to stay with Minimags, though the new CCI tactical has been good as well. I hate to buy a tactical .22lr round just from the name, but they feed well and have all lit on the first strike so I am happy, plus at $20/375, they are a little cheaper than minimags.
I really like Champion for a budget ammo. Shoots well in all of my rifles, accuracy wise. It does have a little more trouble cycling an autoloader for some reason though, and as such it tends to be a bolt rifle ammo. The bulk pack stuff out there is all hit or miss. Some will shoot amazingly well and cycle perfectly. Other boxes have a lot of rounds that need a second strike to fire and cause a bunch of jams. I try to count the bulk stuff more as a lottery than anything. If I win and get a good box, great but if I am ready to accept a box that requires a little effort as well.