Hope you are doing well. Just curious if you have killed a turkey with the Mabry pot yet?
Anyway, I have a super bantam as well. Mr. William is spot on. I will offer a bit more specifics in case that helps:
This is just for the three super bantam I have tested (Two of them are my buddies' guns), but the three guns have been pretty consistent. So, I think it might be so for you as well. The .562 from Sumtoy, or the .565 from IC in the three guns is running around 310-325 (give or take) in the ten at forty. The .570 in either Sumtoy or IC is running around 290-312 (give or take). The GREAT thing about the .570 is that it will have a much better 20 inch pattern and that is really important if you are hopefully staying inside of 40 yards for your shots.
Sumtoy and IC are great choices. Another surprising choke is the Patternmaster Anaconda black strker .570 gas over constriction. It is not as expensive a choke, but it will run around 280 in all three guns with 9's in the ten at forty yards.
But what I want to leave you with is this - try the little factory extra full that came with the gun and you will likely be surprised. It for us and some others on here is throwing around 250 in the ten at forty, but most times putting just about that same amount in the outer twenty. Five hundred pellets in the total twenty circle is no joke and the old question has to be asked at some point - how dead is dead? No turkey is walking out of that pattern inside reasonable hunting ranges. So, you may already have your choke and not need anything. Please let me know your results after you do some shooting. Since we have several of those guns, I am all ears.
