If you are turkey hunting, and it sounds like you are if you are contemplating loading 2 ounces, then I wonder how many shells you shoot per year, and how much those ammo costs could factor into the equation when all the other associated costs are considered.
I haven’t penciled it out, but to give you an idea, I found what turned out to be a GREAT 20-ga quail load:
1/8 oz #9 TSS
7/8 oz #7 steel
Say a pound of TSS is $50. 16 ounces x 8 = 128 shells. That's $0.39 / shell, or $9.75 / box just in TSS.
We have a daily 10-bird limit, and a pretty long season, 3-plus months ... let’s say my ammo costs this season were $100 (I did not shoot near a flat of shells)
See what I mean? Factor in fuel, food, ice, license, etc, and the difference in ammo costs really didn’t amount to much for me. The flipside is this ammo flat SMOKES them, so much so that before this season I would have told you that were it not for Cali mandating lead-free, I'd still be shooting lead. That's not true anymore. At least for this little 20-gauge and this duplex load, I would not go back to lead.
Now all that goes out the window if you want to shoot a full oz (or 2) of TSS at volume. That’s why I duplexed ... and it worked GREAT!
In your case, you’ll probably need to buy all the components (none of the available data included any of the components I had on hand), so $20 for a bag of primed hulls, $25-30 for a pound of powder, $10 for special wads, maybe a few bucks for some fillers (try to avoid them), and then probably $100 or more for 2 pounds of TSS, which will give you 16 shells at 2 oz/per.
In your shoes, and depending on how much you shoot per season, I might just buy them. That's a lot of hassle and expense for 16 shells.
Also, do you really NEED 2 oz of TSS per shell? At $50 / pound that payload cost you $6.25 / SHELL just in TSS
This stuff is dead - LY! Some other guys here who hunt turkey might have more input on that.
Bottom line: sharpen a pencil and figure out how much you shoot per year, maybe talk to some turkey hunters about reducing that payload without losing effectiveness.
At least for quail, I found a happy place.