2-piper

Agreed, many factors impacting felt recoil.

Like I said initially I am a skeptic. When I get a chance I'll weigh the wads & also the shot drops as I'm using #8 with the PB load & #9 with the Clays load (the same non calibrated bushing for both loads)so weight probably differs somewhat.

I have a chronograph so I could attempt to check velocity as well.