A few years back the Defiant pellet was introduced. Some folk thought it should be spelt Deviant, for obvious reasons.
I tried a sample of the three head sizes, 4.48, 4.50, and 4.52. As I have already mentioned, the EV2 likes pellets that are loose in the breech so you would expect the 448s to be better than the 450s and them to be better than the 452s.
Well, the 452s were the worst. However if it hadn't been for a couple of completely unpredictable flyers, the small head sizes would have been very good indeed. But they just weren't reliable enough.
These I think were at 50 yards, outdoors.