A buddy of mine had a CZ 452 American that would honestly put five shots of the Hornady 30gr. load under a dime at 100 yards. Completely under a dime, it would cover a five shot group, on demand.
My 455 just won't do that, at least, not yet. I haven't really had time to wring it out properly, but one thing remains the same, the Hornady 30gr. VM load is a real shooter. My 455 won't shoot the 40gr. Winchesters worth a hoot, though there's more work to be done there.
So far, the WMR doesn't really impress me much.
