Acuspel, i've been tempted a few times to get a .20, two things i was iffy about were getting a good pellet/barrel combo and the velosity.. as in slower velosity, but then i realised the a light .20 would be doing similar to a heavy .177.
the reason for the velosity and pellet match is accuracy downrange, i've always though 50 yards isnt far basicaly.. 60's the start of far etc etc, so the further out it goes the faster it reach's the 600fps region where stuff starts nipping its head out the way, or in some cases a full body dodge with time to think about (as n .22 ratting).
about 3