Hyper velocity .22 LR cartridges?

[double bogey]

I find the unplated bullets (fed 510b) seem to have a nice lube on them. The bulk feds are plated. Both have identical velocities, but the unplated seem to group better, in most of my guns. And the 510b is still $1.47 per 50 at wal mart. I also shoot blazers, with mixed results. I picked up a couple of bulk boxes because a lot of folks seem to like them. they're ok but feds are better. I need to buy some Wolf mt, I was very impressed with them in my 10-22.