Aldeer.com Forums Alabama Deer Talk ALTurkey Talk -- Beards and Spurs Win Supremes VS Nitro

just returned from a quick pattern test and carried some Winchester Supreme 3.5" HIgh Velosity 2oz of #5s and some Winchester Supreme 3.5 High Velosity 2oz #6s and some Nitro 3.5" 4x5x7 Heavy shot.
I was shooting these from a Stoeger P350 with Jelly head .655 choke. All shots where taken at 40yrds. in a 10" circle

Nitros - 158pts
Win Sup. #6s - 205pts
Win Sup. #5s - 195pts

I really expected more from the Nitros. These are the shells and Choke recommended by them for this gun they say I should be getting 230-270.
On a side note the Win. Supremes had noticeably more felt recoil.

Now Im confused on what I need to try now...