This is the .117 vs .22 question frequently asked. But I am only interested in the distinction for shooting a springer (15-17 fpe) at a known distance of 50 yards with wind generally around 10 mph with reasonable wind shelter. I don't hunt or shoot FT competition. So the the "mortar" trajectory of the .22 I don't think is an issue? Under these conditions I don't see a holdover problem. Just dial in the scope for 50 yards. The .177 is faster and flatter, but much lighter. The .22 will be in the wind longer but carrying more weight and perhaps more terminal energy. Under these conditions would the .22 be a better choice for bucking the wind, or would the .177 flatter, faster shooting pellet in the heavier .177 be better in the wind? I'm just killing evil paper from the bench for my own amazement.