Well my patterning for this up coming season is complete and I've attached the result. I'll give credit where credit is do, as the attached spreadsheet format comes from bantamax, who posted his example in another thread. I thought it very useful to analyze my results and get a complete picture. I tried out 7 different loads along with 4 different chokes, mostly at 40 yards, but some I was able to do at 20 and 35 as well.
My initial thoughts: Some real surprises..the loads I thought would perform best, actually did not live up to their hype or perform at all. The Federal Strut Shok and Rem Nitros were a big disappointment, as was the Win Extended Range. The Hevi-13 and Hevi Mag Blend did ok, thought it might do better, but the real surprise was the Win XX mag's which I thought were on par with the Hevi loads, but had a negligibly more evenly distributed pattern at 40 yards.
So I'm on the fence right now, but leaning towards the Win XX mag's. All loads would have performed well at 20 yards, but I want to be comfortable out to 40. Please feel free to chime in and give me your two cents worth.