I hunt in multiple states every year and for the past 3 years have taken (or guided people who borrowed my shotgun) about 10 birds with Longbeard XR #5s in 20 gauge and 12 gauge. Both choked with Trulock chokes with diameters matched to the shell. Shooting these shells, you could do just well with any number of quality choke makers out there.
IMO this is the best bang-for-your-buck turkey shell on the market today. #5 or #6.
Low-budget turkey shells are half the price, but not half as good.
For the record, I'll be switching to TSS #9s and shot a few birds with them this year.
Hevi-Shot seems attractive, and I want to like them (since their shop is right down the road), but 5 minutes of research on their marketing and product description gives me an uneasy feeling. Plus, they just don't pattern great in my guns. Friends do okay with them. But IMHO they are not worth the price.
For mid-budget lead, Longbeard's all the way, but above all pattern in your gun and choke combination to know what's really happening down range at 10, 20, 30, 40 and 50 yards.