RE: Winchester vs. Nitro results.
I patterned my Nitro loads last year and got 367 pellets in a 12 " circle and 293 in a 10" circle @ 40 yards. Some people don' t believe it but I had 3 eye witnesses that observed it first hand. They immediately went to the phone and called Nitro and ordered some too!!
Browning BPS 12 ga., 3.5" ,28" barrel, Rhino .660 choke, 2&5/8 ounce #4x5x7 economy hevishot load.