super domes would be a good place to start .A good all round pellet and not to pricey .Air arms field,JSB exact,fx,all the same pellets in a different tin although a little heavy can be good and leave the gun with a lot of power I find.Only good in 22 from a spring gun the soft lead cannot take the shock from the spring piston in 177 I feel .I could be wrong. Wasp are rubbish and you have two tins to choose from bad or realy bad.Old wasp pellets are supposed to be good .Defiant pellets in 177 I have had good results in my spring guns.(but not in a webley mark 3 )All of my spring guns in 177 sh