Quote Originally Posted by MikeHW45 View Post
They sound good Tone. I was looking at those on Egay the other day wondering if they are worth a try. I use 10grain + bisley magnums in my (whispers) PCP S510 when I take it to Iden Ferns HFT although its Rachel that uses it more than I do. The heavier .177 work a treat in that one
Well, the general-ish rule of thumb would usually point to lighter pellets being more efficient in a springer and heavier ones in a PCP. But there will always be exceptions. And I used to use the 9.3 grain Silhouettes in my springers years ago. Really good. And excellent in the wind, too.

A good testing session with those Heavies will be most enlightening, methinks, and they really were very special in terms of beating the Hollow Hoolies.