I have heard OK things about Berry but have not used them. I have read that at very very high speed, they may come apart, however when I questioned that, someone came back and said that they have used them for many years and never had a problem with them.
I mostly stick with Rainier Ballistics for bulk purchases.
Rainier Ballistics, LLC | LeadSafe Bullets
Another good one for bulk is Montana Gold
Sometimes though you have to use what you can get.