If you mean BRA....many would say yes to both and the BRA brass is easier to form. I'm not a benchrest shooter but I think most all if not all LR BR records are owned by the BRA now.
I've had both, if you aren't planning on shooting LR BR I'd say pick one. Both shoot stoopid small.
The straight 6br shoots awesome as well and crazy easy to tune. It gives up 100-150fps to the other two in most cases.
