Hello Fastcat !!
Congrats on your new gun and Pure Gold choke. It will work great with the old lead loads. Of course, those loads are not as good as the new HTL loads, but I and many others, have killed piles of turkeys with lead loads. Just be sure to check your pattern before you hunt, and I'm confident with lead shells, you will have a killing pattern at reasonable ranges. Winchester lead shells have always performed better in lead, in the past years, but the newer Federal lead shells are exceptional compared to the old shells of any brand. The new Tempest chokes make the Federal shel;ls perform almost as good as the HTL loads ! Good luck, and don't hesitate to call if we can help !!
thanks again,
Bill Davis