No better than I can shoot, I don't know if I'd see much difference...grin.
I just ran the WLR's because I have a bunch of them. They may have something to do with seeing such velocity without a max load, though.
I may play with some others when I can get them.
It's nearly too hot to work up loads around here right now.
You boys in the cool will have to continue the research for a while, I reckon.
DJ