I've shot a little of the Federal and a decent amount of CCI Blazer. If I remember correclty, with some of the CCI Blazer, I was playing around shooting at steel targets at 200 yards with a G19 and RMR. Most of the shots were very close to the target, but every now and then I'd get a shot that felt good when it broke but would impact far far away from the target, as in yards away. I'm not much of a distance shooter, but I don't think those wild shots were my fault. (Granted shooting at 200 yards with a G19 is far enough outside the norm to be of much relevance.) I've shot a lot more Brown Bear than aluminum-cased ammo though, and I've always been very happy with Brown Bear, except for the recent hard primers. I think I might start a thread about that...