3" 1-1/2oz Federal Heavy Weight #7 will kill a turkey much, much further than the pattern will hold together. It's flat mean, way meaner than lead(even lead #4). The beauty of the HW7 is that in the right choke you can get nice even kill patterns to 50yds with ease. It is hands down the best mass produced factory load on the market. That said, if you want the ultimate 20ga load, look up Apex Ammo online and buy some of their 1-5/8oz TSS #9 loads. There's not a factory load on the market, even up to 10ga, that can touch TSS in a 20.
Good Luck,
loder
