RWS pellets seem to be favored by Crosman barrels. My EdGuns like JSBs and RWS, but particularly the JSBs. If I slow velocity to < 640 FPS, Predator Polymags take the cake, especially when pesting.Trenier is my favorite place for ordering JSBs. I order everything else on Amazon, excepting NSA slugs which I order from NSA. Oddly, the NSAs in .216 shoot surprisingly well in my Crosman 392PA pumper at 5 or more pumps. A little loopy but zero wind-drift. I'm probably the only person using slugs in a mid-power pumper.