Glad you have had good patterns and good success...
Frankly, I think almost any load out there (including a standard pheasant load) will consistently kill birds in good range with a relatively tight choke. At 35 yards or less, just about any load properly choked load will be "devastating" to a turkey if you hit them.
Some things to consider for others looking into a good 20 gauge load (from my experience).
The flight control wads can create some funky issues with patterning, as can the flight-stopper pellets (at least with steel loads).
My preference would be a standard Hevi-shot or TSS load with a standard wad and a tight choke (probably standard full choke in my 20 gauge).
Before lead was illegal in my state, I had very nice patterns with Fiocchi Golden pheasant 1 1/4 oz loads of nickle-plated #6's... Very adequate patterns out to 40 yards with a standard full choke in my Beretta.
And remember, if you are shooting a 20 ga. for less recoil, those hot 20 ga. loads can have more punch than a 12 ga. load due to the weight of the gun being lighter...
